That'll eventually take up too much room... The parts organizers I use are those wall-mounted units with the 12-24 sliding drawers... I keep decals in three-ring binders, organized in Zip-lock bags by Country.
Other stuff, I organize by general purpose... Props, cockpits, tires (tape sets together) , engines, transmissions, radios, weapons (which get broke down to sub-catagories of small arms, pistols, rifles, machine guns, cannon, artillery, special (flame-throwers, AT weapons, mines), and separted by scale.
Figures, first by scale, then by nationality- (Aircrew w/ flight gear sitting, aircrew w/ flightgear standing, then (ground crew-Allied/Axis. PTO/ETO ground crew WW1, WW2, Korea, 60's through 90s) and finally, jet pilots.
1/32-35th scale: Country and era. Then I stop with separating them and go to equipment.. Drawers get tagged Helmets/caps, TA-50 (field gear like packs, E-tools, ponchos and gas masks), boots, right arms, left arms, heads, left legs, right legs,
Various sundry items like brass PE and resin parts, gunsheilds, scrap plastic and wood (pieces smaller than three inches long and two inches wide, plus rod, strip, wire etc.)
Misc: Those parts that don't fit any particular category, but just have interesting shapes, or are studded with bolt-heads or nuts, like Panzer drive wheels and skirt-armor. Also, wheel-wells can become cokpit tubs and gunbay platforms,so keep them too..
Long pieces of straight sprue... Might laugh, but they make great camouflage net support poles... And keep various colors as well.. You never know when you'll need blue, red, yellow, or clear sprue... Those colors are getting harder and harder to find... OD, Black, Grey, and Tan are common as the cold, so unless it's an interesting shape, toss it...