Having just experienced my second flat in three days of commuting (I was out of town until yesterday so today was my first day riding since last Friday), I am ready to get serious about preventions. Cambronne and several others suggested Slime or one of the other similar products. When I called my regular bike shop, as well as a couple of others to see if they had slime, I got varying responses. None liked Slime-type products because they say they make a nasty, hard to clean mess when you do have a flat. One shop said don't do anything; just get faster at changing flats. Another shop talked me into kevlar liners, which another shop said could CAUSE flats. I bought them, but did not have a chance to install them before my ride today. Boy, am I feeling stupid. And confused.
So my question is how do you feel about the alternative prevention methods? How about the Slime messiness issue? Anyone ever have a flat caused by kevlar liners? I plan to install one or the other this weeked (12/9-10).