It's akin to sorting an incoming set of something like Lego, where you never know what's coming next. Do you need a bin for "red"? Or a bin for "2x4"? Or will

It's akin to sorting an incoming set of something like Lego, where you never know what's coming next. Do you need a bin for "red"? Or a bin for "2x4"? Or will there be enough for "2x4 red"? Should this new "red hat" become it's own bin, and if so is it "hats", "red figure decorations" or "misc"? You don't really know until a bunch of the same things come in (or don't), and guaranteed you'll get a bunch wrong along the way.