Thank you all for your replies - they are very helpful!
I was wondering about the same thing, but in addition to that, what about little personal things like bulletin boards, kids' activities information, photos, stuff magneted to fridge, etc... nothing that really can be damaged or rummaged through but really, just wondering if it's a little strange for giuests to see all this stuff. My house is very tidy and I plan to make them space for their clothes, food, etc (tomorrow is our first booking!), but do I need to put all the random miscellanaous stuff behind closed doors or locked up? shoes on a shoe rack in the mudroom, calendar items on bulletin board, toys neatly placed in a corner in the mudroom (ie not in the playroom), homeschool books/items on desk in school room, random family photos taped to a wall just for fun (ie: not framed and hung), etc
Trying to figure out how crazy I need to go.