Thanks everyone for the replies - keep 'em coming.

I'll probably stay with the plastic multi-compartment storage containers but will probably "down-size" as I just picked up some of the Flambeau 4007 boxes which provide 36 compartments per box and they're only 11" x 7". I'll use these for my smaller patterns (midges, nymphs) and keep the larger boxes for dries and streamers.