Tape combination to padlock so it won't be forgotten over the summer

Stu sent this to me a long time ago, and I've been hanging on to it till the end of the school year! Great tip for students, and for the rest of us who tend to throw padlocks into drawers without noting the combination:

If your kid uses a combination lock at school, but tends to forget the combination over the summer (necessitating the purchase of a new lock): At the end of school, put a piece of...