Another F@%#ING Flat!

Three gd flats in three consecutive rides. It's enough to make you chew your own foot off. I'm so sick of this, that I'm seriously thinking about hanging up the whole bike commuting thing right now. Any savings I'm realizing in gas are being negated by the costs of tires and tubes. In the past two weeks, I've bought two tires and three tubes. I replaced the original cheap, crappy tires that came on the bike with a set of Continental Ultras; the rear tire didn't even last a day before I flatted. I was a little over half-way back to the car when I ran over two shards of glass so small, I couldn't even see them to avoid them. I didn't even really need to boot the tire, but I threw a couple of patches on the inside of the tire just to be sure. The front tire (so far) has held up like a champ, it's the rear that's been giving me fits the past week. Perhaps my ass is just too fat for any but the strongest tires they make. A set of Gatorskins would probably alleviate my problems, but I'm sure they're spendy. I saw in my email when I got home that Performance Bike is having a sale through the weekend. I'll have to check it out; maybe they'll have something I can afford.

Any advice from anyone who happens to be reading this will certainly be appreciated.