A few unused ice cube trays worked great for the initial sort. Turns out it is also great so you can have your whole color palette with you as you build.

The 22,000 bead container has 30 different colors. This seems like a pretty good range to me. I can do a whole bunch of practice projects before I get the specialty colors I will need for the more complicated stuff I am planning.

Some of the colors are really close to eachother, though. It takes good lighting to separate some of the pinks, blues, and purples. I love that variety, though. I might get deeper white icecube trays next time I am at a Goodwill, though.