I've got lots of hex bits for the electric drill, the electric screw driver and various interchangeable tip tools. I've been keeping them in a jar on a shelf. I've gotten sick of dumping them out to search for the one that I want.
This design has given me instant visual access to the whole array of hex bits. The photo is of only one of them, I've actually made a bunch for all the different types:
This design is available for 3D printing at: Pegboard Hex Bit Holder
Next in this series Circuit Tester and Grounding Adapter