I have a hardware store tote that has pockets and elastic holders for all kinds of things. I added a cup to hold pens, and pencils and holders for my tape measures and pins. It holds small rulers, all my scissors, etc. The little mesh pockets on the side holds my rotary cutter blades in their holders.
I can see everything and the handle at the top makes it portable. I think I found it at Home Depot. If I was looking at a tool box, I would make sure it was big enough.