They do not need a basking light at night.

I buy between 2000 - 4000 adult crickets a week and store them in a rubber maid container. All I do is cut a few potatoes up in to four section and they are fine. I also give them the middle section of the collard greens after I chop up the leafy part for the dragons. Nothing goes to waste. Do some of them die, of course they do. Keeping crickets sucks. If you only have one dragon and want to go to the store every day that is up to you but keeping a few dozen on hand should not be to bad. Just make sure they have plenty of ventilation. Cut a hole in the top of the lid and use screening to cover the hole.