I forgot about this one when I originally posted about this . . .
Screw top storage containers.
You know, I don't know why this took so long. There are several products with screw tops now. Including paint where the screw top lid is just awesome!
As for storage containers . . . did you ever send all of the contents flying trying to open the top of a storage container that was a bit to tight? Me too. I love these things.