I've got 2 Raleigh twenties (a green one that is operational and a brown one that's a WIP), 2 Schwinn Town & Country Trikes (a 1980 WIP, and a 2007), a 1988 Specialized Sirrus, a 2007 Specialized Sirrus 700c hybrid, and a 1989 Alpine Monitor pass hardtail that has been hybridized. So it's seven.

That was '07, now in '09 things are different.

The Free Spirit Brittany went to the bike coop. Now in addition to the other three, I have a ghost bike, someone gave me a reggae painted Murray frame, I got a very nice Kabuki that a co-worker left behind and bought myself a Bacchetta Giro 20 recumbent and a Bikes to Work trailer.

Nine. The first 5 are "my" bikes (the first 3 I've ridden to work on), the last 4 are project bikes that are too small for me and will be sold eventually.

1. 1994 Nishiki Sport XRS (primary commuter)
2. 1983 Raleigh Marathon
3. 1966 Raleigh DL-1 Tourist 3-speed roadster
4. 1973 Schwinn Varsity Sport
5. 1984 Schwinn World Sport (fixie project down the road)

6. 1970 Sears (made in Austria) ladies frame bike (5-speed + overdrive)
7. 1960 Hawthorne Hercules 3-speed cruiser
8. 1989 Schwinn Sprint ladies frame bike (current project)
9. 1981 Fuji Royale

EDIT: That'll teach me to post and vote before reading the first post.... I guess "bikes that I actually ride" would only be the first 4, so I guess I need to revise my answer down from 9 to 4.

EDIT AGAIN: I've ridden the 1970 Sears around the neighborhood somewhat while working on it, so maybe my number is......... 5?

I have 6 working bikes
1. Schwinn Super Le Tour- Single speed conversion. Bike meet/ weekend bike.
2. Dawes SST- My babe. Bike meet/ weekend bike.
3. Schwinn Le Tour. Commuter/ Weekend bike.
4. Motobecane Nomad. Commuter/ weekend bike
5. Puch Meteor Luxe. Commuter bike.
6. Alpine Guadalupe. Trail bike/ commuter.
7. Edgewood Diamondback comfort bike. Commuter/ weekend bike.
8. Old C.Itoh roadbike. Piece of junk, will be a single speed conversion commuter by this weekend.
9. Next Street Cruiser.
10. Schwinn Hinge. 20 inch folder bike.
11. Flying Pigeon. 16 inch folder bike.
Oh wait! Thats 11!
I'm gonna craigslist the 2 folders and the Next cruiser since I don't hardly ride them anymore. I'll see how the C.Itoh comes along after the single speed conversion. She'll either be a good commuter or junked.
Ernest

Well, since somebody dredged this thread up from the dead, here's my stable, in order of how often they are ridden:
1. Bob Jackson World Tour, my main commuter bike.
2. Eddy Merckx AX, my ride for weekends and long distances.
3. De Bernardi SL, my fixe/SS conversion that I usually ride to work once a week.
4. Merckx Corsa 01, my backup road bike that ain't getting enough love.
5. Specialized Rockhopper, my mountainbike that I ride about once a year.

I voted for 6. I actually own more, but they are my 'inventory' since I'm kind of an amateur bike flipper.

Commuters:
1)Giant TranSend, 2008
2)GT Talera, 1993 winter beater commuting bike

Pleasure:
3)Specialized Sirrus, 1990 - one heck of a fast road bike
4)Cannondale T400, 1994 - my most beautiful bike

Sentimental:
5)Puch Brigadier, 1973 - my father's first real road bike. Then my first.
6)Rampar R4, 1977ish - Dad found it next to a dumpster. Grabbed it and refurbed it for me when I was a kid.

Oh, boy... well, I guess just as therapy I should count up as many of them as I can think of...

Commuting bikes (all are folders):
Downtube Mini (2007), my main commuting machine (but currently in the shop)
the yellow folding bike (2009) a generic Chinese boat anchor, my backup commuting machine
Strida 3.1 (2005)

Fun bikes:
Trek 720 (1982), this is my main touring and randonneuring bike, occasionally used for commuting
Specialized Hard Rock (1987?, used mostly on the beach)
Counterpoint Presto recumbent (1990?)
Leader road bike (2003?) (I've been meaning to sell this ASAP)
Counterpoint Opus II tandem (1984)(if wife or daughter or son wants to come with me)

Utility bikes:
Xtracycle built around a generic MTB frame
Worksman LGB

Classic bikes, kept in original condition (but I do ride them):
Norman three speed (1951?)
Raleigh Lenton Sports (1963)
Moulton Stowaway (1964?)
Schwinn New World (1940; but not currently operational)

I have several others that I mean to fix up and sell, including a Cannondale T500 touring bike, a Bianchi Eros, a Nashbar MTB, a Raleigh Twenty, and... well, you get the picture.

1. 1997 Schwinn Passage, my first road bike, that I now ride almost exclusively. Upgraded to Shimano 105 about 2 yrs ago, it's fast, quiet and reliable.
2. 2000 KHS Flite Team 2000, very light and fast bike. I'm going to convert it to a double crankset and try riding it on days when it's not going to rain.
3. 1999 Fisher Mamba, hardtail mountain bike and sometimes winter commuter. Since I've got my wife her road bike we just don't get out on the trails any more...
4. 2008 Ritchey Breakaway Cyclocross - currently building this bike, which I bought for travel and so we can do the C&O Canal to Harper's Ferry this summer.

5 bikes I ride.

Specialized road bike (commuter).
Tri Ax road bike. ( For short trips-no worry about theft)
Schwinn Jaguar IV ( Fenders for rain...50 years old & looking good)
Tandem
Mt Bike (Snow)

I have the following :

1. Mountain Bikes -
Cannondale SE 2000, Jaguar MT5300, Bridgestone Slugger

2. Commuter Bicycles (Frackers, Folders, & Cruisers) Assorted Sizes -
Bridgestone, National, Panasonic, Miyata, Maruishi (Frackers), Trek (Classic Cruiser),
and other brands (Folders)

You can check them out at my flickr account here

I have 2 currently. Hoping to pick up a 3rd steel-framed solid-fork mtn bike to turn into the all weather commuter.

Currently have:
2001 Cannondale F500 Hardtail - was the jack of all trades commuter/grocery getter until I got the following.
1984 Motobecane Mirage Sport Road bike - the sporty fair weather commuter.

I live with 2 room mates, and between all 3 of us we have 5 bicycles.

Seven that I can throw a leg over and get a move on. Three not counted that are disassembled, needing overhaul/reassembly, including a Vitus and Somec from the 80's...

3 of the fleet are fixed gear.

I use 'em all on the commute, except for the Kestrel, which has spindly, go fast wheels not exactly suited for carrying a heavy load...

6 bikes and counting....

1. '98 Sunn Revolt - steel race hardtail, raced it alot in the early '00s
2. '98 Specialized Stumpjumper - converted commuter/grocery getter with rear racks, recently powdercoated. I ride it daily to work and around town.
3. '99 Bianchi Campione - my roadbike to get training miles in
4. '03 Giant NRS Team - full suspension "race" but I don't race anymore
5. '04 Interloc Tempest - 853 steel 2x9 rigid fun bike w/a spare wheelset shod with slicks
6. '08 Specialized Stumpjumper FSR - recent purchase, been riding this one on the trails lately. A little more plush than the NRS.

Luckily I have a garage to store and work on them and a girlfriend who understands my obsession.

1)2007 Marin Point Reyes for commuting and any road riding
2) Raleigh tarantula for beating around and studded tires for fooling around in the snow
3) Norco Katmandu for daughter #1
4) Norco Scourcher for daughter #2
5) An old Raleigh 6 speed that my wife cant ride anymore so we loaned it to a friend

Last count, 10. Gave away two to family members for Christmas. 1 commuter/heavy duty hauler, 1 fixed gear, all the rest (8) are vintage cruisers.

Wait.... you mean they've been making bikes since the millennium, too?

I have a bike for almost every decade going back to the 1930's but don't think I will need one for the next decade or the one after that.

They are a mix of old and new with new being my 2001 Rocky Mountain Blizzard and the old being a 1933 CCM Rambler, a gentleman's coaster bike.

In between I have a 1940 CCM that I turned into a path racer...



A 1955 Raleigh Lenton Reg Harris Road Model...



A 1954 Raleigh Sports is on the "to be restored list" and then there is this 1957 Peugeot PLX8 I found on a curb that has not really needed much work at all...



And then we have a bunch of seventies bikes...


1974-76 Peugeot UJ10


1972 Phillip's Twenty - 3 speed road conversion.


1972 Phillips Twenty fixed gear conversion


1970's CCM Mustang

A pair of Kuwahara mtbs that I converted to fixed gear bikes...





I seem to have hit my image limit... time for part 2.

At present, only one. The one in my sig. However, I am sure I will get more as my knowledge, and experience grow in this sport.

in order from new to old:

1. 2006 Fuji touring bike - Just bought it new for $385 :-). My new commuter/utility bike.
2. 2006 Raleigh Supercourse - bought new in 2006. My "good" road bike
3. 1997 Fuji Roubaix - Bought new. My former "good" road bike/commuter. Has ~25-30,000 miles on it.
4. 1994 Raleigh MTB - purchased new.
5. Circa 1990 Cannondale Criterium 3.0 - purchased used for $100 - pretty bike, and fast!! Trainer bike
6. 1981 Trek road bike - Purchased used for $45. Set up as my utility bike.

I just bought #1, so will likely retire #3 and #6. Might sell them, might just put them out to pasture in my shed in case I want to reseurrect them later. They're all still in good riding condition.

Neville...my 1948 Rudge.



OOOh...Rudge!
I see that nice chain ring waving at me. "hello!"

Four:

08 Surly LHT-full time commuter
07 Specialized Roubaix-road use
06 Bianchi Pista-for something different
05 Trek 1000-winter/rainy use

The used Trek ($425) came first and everything kinda snowballed from there.

Eight, six of which are IGH bikes.

83 Colnago Super Record
90 Trek 950 MTB converted to NuVinci hub
94 Univega 21 speed
95 Kona cruiser converted to a 3 speed Sachs Torpedo hub
95 Duracycle track style frame with SRAM P5 IGH
08 Civia Hyland Rohloff
08 Swobo Dixon SRAM iM9 IGH
08 Steelwool Tweed frame set up with Shimano Alfine IGH. Just finished today.

I also have a Peugeot PX-10 frame and fork for a future project.

I want to toss them all and start again

Started with a ....
1980s Norco Monterey SL
Mercier kilo tt pro "fixed"
Devinci CX4 for weekend ride
1982 Bianchi mtb project bike I picked up for free

Six if you count my kids bikes and wifes beach cruiser. The three that count to me are my fun mtb/road rider, my fast commuter, and my shopping basket errand runner. They all get ridden at least once every 2 days.