This is my Multi-Rack Multi-Purpose Screwdriver/Tool Holder.
As you can see it can hold much more than screwdrivers... just anything that will fit or hang off it. With a holder like this, you can easily see if the screwdriver is the correct head you need or not.
My system is Phillips to the left, Flat to the right, everything else where-ever it can fit.
This was made using some scrap wood and wooden blinds. I do not have step-by steps as i used scraps i had around but the images should give you a good idea of what Ive done.
I found that the width of my drop saw cut was the same as the width as the wooden blind piece i had. All i had to do was make slits with varying distances between them (to accommodate a wider range of tools), cut the blinds to length(cutting out the pieces with holes) and glue in place. Ugly but works well.
If you enjoyed this please vote for me as i have entered this into the SHELVING CONTEST.