Aside from any legal aspects, going on an honor system is not advisable- some guests will assume (or claim to have assumed) that the supplies are provided for free consumption, no matter whether you have the "honor payment" in your house manual or in a note on the fridge. Then say a guest gets food poisoning from eating out, but claims they got it from the frozen meal you provided, and requests their money back. And all you need is for the guests to start mentioning in their reviews how great is that you have alcohol for sale on the premises to attract alcoholic guests who never go anywhere, but just sit at home drinking all day.