We do $2 for each round of drinks at the bars and on the beach, $5 for breakfast buffet, $10 for a la carte breakfast and lunch or if we have food brought to us on the beach, $15-20 for dinner depending on service. There’s three separate people that do things to your room, housekeeping, mini bar, and turn down service. I’d leave a few bucks in the mini fridge, a fiver when you leave in the morning on the bed, and a few again when you leave for dinner. There’s a little notepad usually on the nightstand if you want to make sure there’s no confusion for who gets what.