Stuff I use frequently or current projects are either in the shed, in the living room or packed in a bag in the kitchen.
Stuff I don't use much, projects to be re-visited - or stuff that needs space [tents/ sleeping bags] are kept in the loft or under a bed.
Clothes in wardrobe - either 'smart' [i.e. not stained/ ripped/ falling apart] work clothes or the stuff I bum around in.
That may sound messy to some but it is infinitly tidy-er than my missus' stuff
and yes there is always something I'm missing [currently it is the smaller of my billy cans- been missing for months now, but then I've not REALLY looked for it yet, I still have the other two]