Why not use an old CD case for circular knitting needles storage! No more cables tangled together -- Just neatly stored in individual sleeves that are labeled with a sticker as to the size of the circular needle within.
SuzNote: I've had my eye on this cart from IKEA for some time! Here's an idea to actually need it! Portable organization with the Ikea RASKOG Crochet Cart! Check out how Repeat Crafter Me keeps her projects neat and tidy!