Lot's of people have asked me my method of dealing with flat tires. Basically, I save them for later and fix them when I'm really comfortable. Here's the scoop.

Keep two cardboard boxes or crates in a corner some place. If you go through lots of tubes (have lots of bikes and lots of different size tubes) when you replace a tube on the road (always carry a spare tube since replacing it is so much faster than patching it while on the road) and when you get home, throw the tube in the box marked "to check and patch."