Matthew said:i dont understand fix a flat unless in an emergency. after all, a can of the good s*** runs around like 7 bucks if im not mistaken, and it costs 10 bucks to get it fixed (most of the time). if the fix a flat doesnt work, tough s***, but if the tire place cant fix a tire they wont charge you. and if the tire place cant fix it with a patch and whatnot, neither will the fix a flat. in conclusion, fix a flat is worthless.