You dont need to supplement with D3 everyday, but most crickets should be dusted with a phosphorus free calcium (no d3) powder. what brand of supplements are you using? Rep-Cal has 400,000 IU/kg of D3 whereas Miner-All (I) has 4,400 IU/kg of D3 and I think 150IU D3 in Nutribol (which also has Vit A so be wary of using this very often). That's a considerable difference in D3 strength. So your dustind schedule will depend on which brand, and on how much access to sunlight your cham gets.
Info on supplements:
https://www.chameleonforums.com/blogs/sandrachameleon/65-supplements.html
Info on gutloading:
https://www.chameleonforums.com/blogs/sandrachameleon/75-feeder-nutrition.html
The dry portion of a gutload can include (blend with a coffee grinder or food processor): quality whole grain cereal (Im currently using Kashi); spirulina; bee pollen; alfalfa; organic raw sunflower seeds; dried seaweed/kelp/dulse; oats; oak leaves; powered egg; ground almonds; ground brazil nuts; wheat germ; hemp seed; fig powder; high quality monkey chow
A wet gutload (switch it up with a different couple of items every other day or so) can frequently includes things like: dandelion leaves, squash, carrot, yam, orange, mustard greens, pomegranet, collard greens, kale, romaine, apple, peas, blueberries, raspberries, alfalfa sprouts, sunflower sprouts, ... (avoid broccoli and spinach).