That's a great idea. Another thing that's happened, although this has happened to me by accident, not design, is that the following guests will occasionally find things that I didn't think to check. I've come to the conclusion that even waiting until my next guests have been in for a while is a good idea too. Not everything can be attibutable to the previous guest, but most things can be.
For example, I found out that a store of goodies I had in a partially hidden and very difficult to reach storage area had been cleaned out by guests who stayed for two days and who were going on to camp at a local, federal park. Since it was clear that the bin was a storage bin--there were paper towels and other non-chemical things in a large plastic, sealed container--I knew that they would have understood that the contents were not there to provide a huge, extra supply of things.
So I found that about 6 boxes of individually wrapped gourmet cookies, along with 1 box of individually wrapped gournet granola bars, had disappeared when the present guests said they'd eaten the portions I usually leave out and wondered if there were any more. When I told them where to look, they messaged me back saying the container was empty, save for the paper towels and face-cloths, etc. So this family had left enough cookies and granola bars out to look like they hadn't taken any, but had then taken my entire supply in my supply cupboard.
So they were sneaky. Anyway, I know this sounds like a totally first world problem, but the point was that the cookies and bars weren 't expensive--they were just not available in my immediate area and necessitated a trip to a store in another small town about a half hour's drive away. So I was glad that I hadn't written the review yet because I was able to say they'd cleaned out my entire supply of condo snacks and that future hosts should make sure to nail down anything they didn't want taken.