1. You don't want a mister or humidifier in your tank.
2. You have not really described your set up and it's hard to give advice based on nothing - what is your humidity level?
From what I have been able to gather from your previous posts:
First - have you replaced those analog guages with a digital thermometer/hygrometer? If not - do that first. Then find out what they actual themperature and humidity levels are and get back to us.
Assuming you in fact have a humidity issue:
From what I remember you are using newspaper - you may need to switch to a substrate that holds and releases water better like cypress.
If you are using a screen top - you'll need to cover it - IMO plexiglass works best.
If you are using a heating lamp of any kind they suck out humidity you should find alternative ways to heat your cage.
Again your first step is to get a good digital thermometer/hygrometer don't skimp this will be your friend for many years.
If misting the cage is really that much of a hastle for you - maybe you should consider a hermit crab.
-----
Tosha 
"One of these days i am going to wake up..look around...and realize my place looks more like "Ace Venturas"s than my own." Coldthumb
7.33.0 Ball Python (Harry and Fluffy and gang)
1.0.0 Angolan Python (Skywalker)
0.0.1 Green Tree Python
0.2.0 Feline (Pippen and Pandora)
0.0.1 Dessert Tortoise (Pope John Paul)
2.2.1 Fish (1,2,3,4)
0.0.0 Pool skimmer rescues for this season