I took a rather basic approach. Move the cage into another room. Clean the area where it had previously been (with damp papertowels). Buy a small tupperware to use as a temporary cage. Take the snake out and gently remove any visible mites. Soak him with a spray bottle. This can be buckets of fun with a small jumpy python. Let him chill out in the tupperware for a few hours while I clean his cage.
Take everything out of the cage (use papertowels as a liner since mites show up nicely) and replace the hides/water bowl with alternates. Soak mite infested hides/decorations/whatever in a bucket with a touch of bleach overnight.
Put a flea collar (2$) inside of the cage and cover any ventilation with plastic wrap. Leave it outside in the hot sun for a few hours. When you think the contents have been adequately baked/poisoned, clean out the inside of the cage with wet and then dry papertowels. Reinsert liner/hides/water/snake.
Repeat the process a few times and hopefully the mite infestation will be broken. I did it 4 times but didnt see any mites after the third.