Originally Posted by Bklyn
I kind of inherited a second bike, which is great. But does this mean I need two sets of lights, two tool kits, two locks? I'll never keep this straight. What do the two-timers do?
Two? How can you live with just 2? I have 9! Five of them are always commuter ready. They all have blinkies (or 2) on them during the winter since blinkies are cheap. (I take them off in the spring.) My lights - Niteriders - use the same bracket so I have those mounted on the bike and just slide the light head onto whichever bike I feel like riding. I don't carry a lock- and haven't for the 25 years I've been commuting to work. The bike comes inside.
For tools, I carry a Camelbak Blowfish that has all of my tools - and I have an extensive kit-, patches, tubes, water, glasses and wallet. I do have an underseat bag (two, actually) the the same tool kit as the Camelbak (you can collect a bunch of junk in 25+ years of bicycling

) for those days when I don't feel like carrying a Camelbak which happens occasionally. I also use the Blowfish to carry the batteries for my helmet light which, if I could only have one light, it would be the helmet light.
I do carry two sizes of tubes in my Camelbak, one for 26" and one for 700C but all of my bikes are presta equiped. If I used schrader (ick!), all my bikes would have schrader. Oh, and each bike has its own pump (all Topeak Morphs by the way)- like I said, you can collect a lot of junk in 25+ years