Using a cheap cigarette case I got from the $2 shop I added some anti-static foam to secure my IC's, transistors, LED's and what ever else I have.
A small zip-lock bag stored under one of the elastic bands can also be used to hold resistors or other flat long components.
Step 1: Tools/ Materials
Glue (any general purpose glue will do)
Small zip-lock bag
Step 2: Measure and Cut
Step 3: Glue
I did decide to glue the foam to the inside just because it was a bit more stable that way.
First unhook one side of the elastic on the side you want the foam on, then apply glue to both the case and the foam making sure to get it right to the edges.
Then stick the foam to the case and press it down firmly (you may want to lave something a little heave on top of it until it dries).
Finally reattach the elastic band.