>>11195351Like
>>11195374 wrote, form categories. The more space and boxes you have available, the more categories and subcategories you can use.
If you are limited to 10 or less categories, go by color. Similiar colors (e.g. yellow, bright yellow, also the transparent ones) go into one box.
(+) quick seperation, as you can instinctivelly filter by color
(-) finding a specific part is really annoying (having to sort through all parts each time, with no guarantee of knowing that this part is really there at all.
If you decide to sort by part category, then have this structure:
1. System type (Basic, Technic, Duplo, Bionicle, ...)
2. Geometry (bricks, plates, tiles, slopes, round, ...),
fuctions (pins, clips, hinges, ...),
themes (animals, food, tools, plants, rocks, ...),
Minifigures (including heads, torsos, legs, accessories, ...)
Printed bricks
3. If you have enough space, do subcategories (e.g. Bricks: 1x1, 1x2, 1x3, 2x2, 2x4, ...). This requires however LOTS of categories, so make sure you have enough containers and space. I would recommend using these boxes meant for sorting screws and such things (pic related). Foils and jars will also do, but in the long run, that looks shabby.
TLDR; If you just want to quickly sort parts, then by color; when you want to do something more ambitious like MoCs, then by part types.