How long do the Park glueless patches last in the bike bag? I carry a tube and the Park patches. But I've never had more than one puncture on a ride, so the patches are still untried after two years.

Patching the tube at home with glue patches, I would typically find the little tube of glue dried up. So now I have a jar of Elmer's Rubber Cement, 4 fl oz. It's worked well, so far.