But seriously, I lost my female het Pied once and someone suggested to put strips of flour around all appliances (refrigerator, washing machine, dryer, stove, etc), in all doorways and thresholds, against some of the walls, etc. It worked like a charm. Its harmless to the snakes and leaves "tracks" of where they been. You check in the mornings or after the house has been quite, you're bound to find flattened out flour and snake tracks leading somewhere. It will give you an idea of where to start looking.
Also, do not run the washer, dryer, garbage disposal... anything. They like wrapping themselves in appliances and the last thing you need to do is turn it on... if he's in there... well it won't be pretty.
Do you have a bookself? Check that, including inside some of them. And check inside your couch.
I have other ideas. PM me if you need more! Good luck!
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Cheers!
• Chelsea Lynn Gardiner
(and Frank M. Wood)