What tires do you ride? I thought kevlar-belted tires would solve all my problems, but they haven't I started using lightweight 28 mm IRO Duro kevlar tires on my touring bike, and got even MORE flats than before. The weird thing is that on my "good" road bike I use cheap Performance 25 mm tires (no kevlar) and have NEVER had a flat.

I have now switched to 32 mm Panaracer Urban Max tires which have a noticeably THICKER rubber layer than the IRO Duro tires... Only 50 miles on them so far, but they seem very good. Semi-slick tread, quiet, and not squirmy at all despite being a bit wide for my rims.