If you're like me and you don't use blades as fast as DSC sends them, then you likely have a stack of blade cartridges like I do. I decided to use vertical space rather than horizontal space, and stack them on end. The end result is slightly longer and wider than a razor cartridge, and fits nicely on a standard medicine cabinet shelf.
I've included a 2 Bin version, and the Fusion 360 file if you care to make changes.
The author marked this model as their own original creation.