Earthworms from your garden should do alright in the fridge in some substrate for 1-2 months. You could also culture them like you described, but they will more likely eat leaves than fruit.

Crickets should be gutloaded with either fruits and vegetables, or, easier I feel, is to use a commercial gutloading product. If you set up the cricket container smartly, they could last for anywhere up to a month. If you culture them (we have an article in the Articles section) you could keep them going indefinitely.

Wood lice can be cultured pretty much as you describe - they like rotting cardboard a lot actually. I have never cultured temperate ones though. Keep them on some substrate with some sheets of moist rotting cardboard and you should be fine. They are slow at reproducing though, so don't rely on them as a food source.