Originally Posted by CliffordK

As far as fixing flats near a seam, I've on many occasions trimmed the excess rubber with a single edge razor blade. Or, you may be able to get it smoothed out with the sandpaper in your patch kit.

I think I've had better luck with glue type patches than glueless patches..

For re-using tubes, I've seen them put on bicycle lock chains to protect the bike.

A bit different scope, but motorcycle tubes make excellent rubber bands for things like attaching a fishing pole case to a backpack frame.