Sugru - rapid, easy, cheap repair of small, broken things. Suguru is basically a hardening putty - it's malleable when opene, and dries to be hard and durable in about 24 hours. I've used it to repair broken axles on a cart, reassemble broken headphones, re-attach a handle to a hairbrush - minor, easy fixes which save me marginal time/money/anxiety/frustration on a day-to-day basis. There may be other, similar, cheaper products (some appear on the amazon search I just did), but I have not tested them.

Amazon link