unless we are treating (as in, the room is a gift), we charge everyone $20 per point used. we typically pay for something during the trip (dessert party, table service dinner, etc) for everyone to deflect some of the blow of charging family the rate a stranger would pay. if its a two bedroom that costs 200 points and us two and another couple are going (whether its siblings, parents, friends, whoever), we charge the other couple for 100 points at $20/pt. it seems nice and whimsical to be like "oh, pay for a dinner, or buy our souveniers, etc", but all that leads to is stress from the non owners ("did i spend enough on souveniers, was that an expensive enough dinner") or being butthurt from the owners ("they thought one dinner at plaza was enough to cover 6 nights!?"). just divide up the cost of the room ahead of the trip, and then if you do anything magical for eachother on the trip, its because you care for eachother, not because you had a fiscal duty. now, if you have family and friends who think they shouldnt have to pay anything because the room was "free", that is a different conversation and a completely different tone to a post on this thread.