I wish to share 2 ways to reduce posible flats for those who do not already know these tips.
1) talc on the tube. it allows the tube to slide in the tire, thus reducing the possibilities of flatting. tubes used to come loaded down with the stuff. now theres barely, if any on them. baby powder works fine.
2) if you use Presta tubes, DO NOT tighten the nut any more than is needed to keep the valve from going into the rim when the tire is flat, or you can even leave them off until its tire changing time, thus reducing the chance of the tube breaking loose at the point where the tube and valve meet making a repair impossible.
hope these tips help