I have attached a few photos of some plastic organiser cases that I purchased for $6 each from the Reject Shop. (some states its called Crazy Clarks/Sams Warehouse/$2 shop etc).
The organiser trays were in the auto section. I find them perfect to put all my LEDs into. Since I have every type and colour of 44/47 and 555 LED's, the numbers of compartments u need starts to add up. By the time u add up the std candescent bulbs etc, and every different flasher and type of candescents, again, you need more organisers. This has made storage and organisation when chosing them very easy.
photos below.