Years ago, when ball pythons were my project, I had one that was RELIGIOUS in his escapes. He was ALWAYS in the bathoom! We always found him not far from the bathtub (or actually in). Many times he was wrapped between the H and C handles. Try keeping an eye out in bathrooms. I Also suggest keeping an eye on these places (which I have found snakies before)

*Under the sink
*under the couch
*Wrapped around table legs
*(if you keep the snake in your bedroom) try between the mattress and boxsprings or mattress and bed *if applicable*
*in closets
*beneath the computer
*in the catfood bag

Balls really REALLY enjoy dark places where spiders tend to hide out (*shudder*) and also tend to flock toward moist places (hence the bathroom, for the water). I'd keep those two objects in mind. Dark, Moist.

Mail for more help I might be able to provide,
Sam