Mite prevention is all about good quarantine when acquiring a new animal, preventive treatment of said new animal, not going to your snake room if you just came back from a show, having a clean feeder source (while mites are species specific snake mites can hitch hike on a feeder etc)
It's really not that hard, in 10 years I have never had any mites the only thing I do is pre-treat new incoming animals while in quarantine and avoid my snake room when I return from a show at least until I shower, shampoo my hair and change cloth.