I'm using sterllite 7 qt tubs. They have the little handles that flip over the two ends to lock the lid on.

So won't the temps un-stabilize when the incubator is opened once a week to check on the eggs?

I'm really starting to worry about this. I did the whole thing according to the article that Reptiles Mag wrote about it and it said it would only take a few days to even out. My snake is due on friday, I just don't want to screw this up! I'm just kicking myself for not doing a test run a few weeks ago. Any suggestions on how to speed up the process? (Wishful thinking, I know.)