i cardboarded off 3 sides of my tank and did aluminum foil for the screen. with that plus using aspen and spagnom moss i can get around 45% where i live its very dry in the winter(at least in my house with the heatin pumpin) so i use a humidifier on low just to get it around 55% or so. i also filled my tank with logs and such to make my future snake feel more secure. i dont know if it works but it looks alot better.

also went from a 75 watt light bulb to a 100 watt red bulb and have the dimmer turned way down to get jussst enough heat that i need, helped with the humidity as well.

humidity was around 20% in the before pic btw

before



after