Most of my figure collection is unpainted plastic soldiers in 1/72nd scale.
So they get put into plastic food storage boxes. The boxes are color coded, Red for WWII Germans and WWII Soviet Union. Blue or Green for US Army, Yellow for Japan, etc.
I put a post it note on the box to indicate the unit. This is my WWII German Western Front Infantry Division Anti-tank Gun Battalion.
This is my WWII German Eastern Front Infantry Division Light Artillery First Battalion Headquarters.
Not all my figures are assigned to specific units yet, I anticipate a big sorting will happen next year. This box is coded Revell, World War II, Deutches Reich (Nazi Germany) Africa Corps, 234 figures, so about 5 or 6 boxes of them.
Sometimes I use the package the figures came in, in this case WWII German Paratroopers from Mars.
These are WWII German miscellaneous hard plastic figures and accessories. Often they are figures that came with a kit, often are not assembled, sometimes came in a lot of used items, that have not been assigned to a unit yet, or may have been mis-sorted or otherwise separated from their unit.
Vehicles and these food storage boxes are stored in underbed storage boxes on custom built shelving under my wargaming table in the basement. This is my WWII Soviet and German collection. Each box contents are noted on a 3X5 card taped on the inside of the box. It's not hoarding if the boxes are neat and labelled.