I lived in Denver and taught at CU downtown for a year. I took the bike path in and they have these four-pointed tire-flatters. It seemed like I only got in a couple of rides without a flat either in or out. It did get me good at fixing flats. I could often do it in under five minutes, including waiting for the glue to dry (though when it was 20 degrees it was way tougher). One trick I used was to determine where the flat was (easy with those things sticking out) and then just take 60 degrees of tire off the rim, pull the tube out, glue it, let it get tacky, patch it, place tube back in, push tire on, and pump it up.

The last six years I have been using tubulars on the road bike. I do not flat on the road that often, but if I do, it is just pry the old tire off and put on the new one. No tubes to mess with. It costs a bit more (since I do not repair flats anymore except on newer, expensive tires), but tubulars do not flat as often.

One last comment. I think that the number one risk/cause of flats (aside from riding hard in the rain) is an under-inflated tire. Also, watch where you ride. I don't think that I had a flat on the road last year.