@Christopher950 You've been given good advice already. I would just add that making efforts at heading this kind of dilemma off at the pass is worthwhile. Add a note to your checkout message/and or in your house manual check out page, and even put a little notice by the exit door "Please check and double check you have all your belongings before checking out. We regret that we will not be responsible for items left behind." While it won't eliminate it altogether, it will go a LONG way in reducing the problem. Dealing with forgotten items can end up taking up a lot of your valuable time, between looking for them, possibly having to pack them up, getting advance payment for shipping through resolution, going to post them, arranging to meet the guest etc etc.