Since I only have on cham to feed, and my other reptiles don't eat the same thing, I don't really store bugs in bulk.
I buy 50 crix at a time, and just keep them in a critter keeper from petsmart with an egg carton cut up into thirds. I give them a slice of potato every day and a little saucer of flukers dry gutload from petsmart. The ones I am going to feed, I take out in the morning and put them in a tupperware with the high quality gutload, and feed the cham throughout the day.
For worms, I just buy the containers from petco, and change the stuff they are in to organic oatmeal. I pull the ones I am going to feed out in the morning as well, and put them in another tupperware with some high quality gutload.
It works for me because I don't have to buy a ton at once, and I don't have huge bins full of bugs lol