I have a real problem with that pic.....they are all too new and too clean.
I see a little bit of drywall dust on the sawzall.
My M12 tools are stored in a drawer on my workbench:
The M18 tools are stored loosely underneath with the rest of my power tools:
I do have the 26"(?) box that was posted above for when I need to take tools with me. I can fit my M18 drill, sawzall and flood light, M12 hackzall, drill, impact, stick light, spot light, bits, tape measure, screwdrivers, hammer, charger, and extra batteries in that box. What I take with me changes depending on what I am doing, so I leave the box empty instead of storing the M18 tools in there full time.