Can sense your frustration in dealing w/flats. Have been though it several times in my commuting/touring life. Have been running Mr. Tuffy tireliners for years w/great success. Still have them in my #2 commuter(mtb w/street tires). Used all kinds of cheap(k-mart) or pricey(lbs) tires over the years. In the spring I decided to try airless tires and eliminate flats completely...it's as if I've been set free. 200 mprwk is alot of mileage and the stress of wondering when 'the next one' is comming can be very taxing. Go to felixwong.com and click on 'bike projects' for the most articulate, fair and balanced blog on airless tires I've yet to find. His summary states he feels airless tires have been unfairly maligned and for touring, training and commuter applications can be a viable alternative to pneumatics. I've been using them since the spring on my #1 commuter(old steelframe roadbike) and though they're slower by 2-3 mph the stressless ride is a joyfilled payoff.

With respect to all the other posters the gatorskins, marathon +, etc. are all great tires and will reduce your 'flat rate' a ton.

If you decide to go w/airless tires get the 2 tires+mounting tool option(you wont regret it) and get ones rated AT LEAST 120 psi for an extra 5.00 per tire...you wont reget THAT either I'd been running 700x28mm pneumatics @ 95+ psi and ended up getting 700x35mm airless @ 110 psi. In retrospect I should have gotten 130-150 psi...and next time I will. The airless have a rep for being slick in wet weather, but my experience has been they're as 'grippy' as standard pneumatics, if not more so. Hit 35+ mph on a .5 mile 14% 'snaking' grade under load on wet asphalt w/no probs. Ride 150-225 mprwk most of it commuting or running errands. Tried going on a Saturday 50 miler w/some friends and was dropped pretty quickly, so I'm building a road bike w/pneumatics for group rides.

The biggest hurdle for me was laying out almost 100.00(w/shipping) for 'bicycle tires'!? When you add up the time lost fixing flats, greasy fingers, pumping the tires back up, being pissed @ having 'yet another' flat in the rain, wanting to go for a ride and discovering you've flatted overnight...the airless tires pay for themselves easily.

They're not for everybody and I've read posts where people HATE them and send them back, etc. My experience has been good and one by one I'm going to put them on all my 'utility' bikes(2 commuters, tourer, wife's tourer and single speed).