If you have a baby at home, get Gerber baby food and save the containers.  They are a perfect size for small parts or subassemblies, the top closes securely, and you can see what’s inside. 

If you don’t have babies, buy the applesauce.  It’s just regular applesauce, it’s good, and you get to keep the containers! 

Tip submitted by:
Chuck FentonGlendale, Calif.