Walking away??

Step one: Make an indelible home (That means you can't confuse that home with anything else) for every single item. Paint outlines, foam cutouts, organizer trays, whatever.
Then, start putting your tools away when you're done! This step is critical. If you put them away while you're using them, then they can't get far from where where you.

See an empty home while you're putting your tools away? Go on a manhunt until you find him. No Marine left behind.