2 words for you, Hook Bonnets ;)
While the foam insulation is nice when your switching a lot of lures back and forth, the hook bonnets are the best for storage or even when your switching a few lures. I just put the extra lures in my shirt pockets or on the floor of canoe under the seat. The bonnets will keep the lures from tangling and are easy on and off. Cabelas sells them by size, and in a mixed bag, which I recommend.