You never sort by color, ever! You sort by form, and then throw every color of that specific form in one bin. If you throw every red brick in the same bin, you'll never find a specific formed red brick because to many red bricks. But if you first search by form and then by color, you are much faster.
Index the many valued column, not the column with few discrete values.
Anyone have a solution for another annoying problem: 1 missing piece.
Somehow got lost halfway through the build.
Also, Lego will send you any missing pieces for free.
there are to many types of bricks to sort by form. unless you have an inventory the size of a brick factory you can only sort by category or by size.
otherwise, sorting by color makes your collection aesthetically pleasing, and when you build, you usually want to use specific colors only to make your model look good.
And then if you like to sort further you sort out the smallest of each bin because those always fall to the bottom when mixed together