I usually tip $5 for meals at the buffet.
At the alacarte restaurants I might do $10 if it’s really good service or tepanyaki table style dinner.
I do $20 for the first night for housekeeping (so they don’t steal my stuff) and then every other day $5-$10.
The snack/refrigerator guy I’ll leave $5 every couple of days to keep the kids room stocked with drinks, chips and candy.
Every few trips to the bar I’ll do $2-$3 or if we stayed at the same spot the whole day I’ll do $5 when we leave cause my kids abuse all the frozen drinks.
$5-$10 to the bell hop at the beginning and the end.
Tip the driver so we’re not kidnapped.