Here are a couple of pictures of how I sort my stamps. I use containers in which dried fruit and nuts are packed at my local market (Ralphs/Kroegers). The containers are big enough -- about 5" x 6" x 1-1/2" and stack up very nicely. Right now I'm using 14 of them. I like being in somewhat control, so I sort by color family and use the paired squares for leaders and enders and go from there.
Container opened, with purple stamps
[ATTACH=CONFIG]243550[/ATTACH]
Five containers stacked
[ATTACH=CONFIG]243551[/ATTACH]