I do too, it's a big bugre an all, I even have one of those magnetic wristbands.
But, typically it is full of stuff and sits in the left hand rear locker.
Rolleyes doesn't cover it really!!!
Typically I would use it for small bits. But for things as big as wheel bolts etc I just park them in a"safe" place.
This is only the second time in my life I lost a locking wheel nut socket.
The other time it was for the D1 300tdi. I searched like mad, even raked up all the gravel, sifted through it and put it all back. Bought a noo one and a few years later just suddenly saw it sitting there on top of the gravel, not far from where I had looked, if not actually in the area. Flipped me off a bit I don't mind saying!!
Im missing a couple of these trays fink they might be stuck to someones motor