Originally posted by Andy Dreisch
In my experience it's simply not worth the time or bother patching a tube.
A patch costs < $.25 vs. a new tube at $5. Plus, it's just wasteful not to patch your tubes - landfill filler and all that.
I carry a spare tube, use that to fix my flat, patch the tube when I get home and then carry that as my spare. When I get to 8 or 10 patches on a tube, I'll ditch it.