So i am still learning about keeping temperatures and humidity where they need to be. My BP is in blue, and needs a good humidity...this morning when i left for school (at around 6:45) it was 63...when i came home today, it had dropped to 45! I didnt have a light on it, and the top is covered...It is a little frustrating. I know how to raise the humidity, but i have no controll over my cages while im at school, and wanted to know if there was a good way to keep the humidity at the right place.
Any other helpful hints other than putting the water over the heat source and a wet towel? (i know about misting and stuff like that, but i mean to maintain the humidity throughout the day)

oh, and by the way, now that i have started paying attention to all this stuff...it is such a cool balancing game! I couldn't wait to get home to check my snake's temps and stuff. lol.

Thanks everyone!