Reader Russ Wood, writes: This comes from personal experience. I’m usually pretty good at keeping my saddle bag/commute trunk tire repair kit up-to-date, but I had gone several thousand miles without a puncture.
Unfortunately, when I opened up my repair items, I realized that the tube was a punctured one from my last flat, which I hadn’t replaced.
I tried to patch it with a “glueless” patch, but the patch was old and didn’t hold very well. Good thing my wife was just a phone call away!
Make it a habit to check your on-bike repair supplies regularly.