We used to run a holiday cottage for 2 people, and there would always be 3 toilet rolls left in the bathroom. Dishwasher tablets for a week, as not everyone has a dishwasher at home, so wouldn't get to use a whole pack, if they had to buy some just to have enough for their holiday. There was always condiments, and then an additional 'Welcome Basket' with bread, butter, milk, eggs, tea, coffee, sugar, a variety pack of miniature cereals, and a packet of nice biscuits. We didn't provide wine, as it's actually against the law, and also, you can bet your life if you provide white, they drink red, you provide red, they drink rose or white, etc. We figured that what we provided meant that if someone arrived late, there was sufficient food for a basic meal, whether it be toast, or scrambled eggs, or cereal of some sort, and if they didn't like that, they could at least have tea/coffee, and some biscuits to take care of any hunger pangs until the morning when they could go shopping.
I'd be horrified if I turned up to find one measly loo roll!