Well, coming from Canada the first yr (3yrs ago) I brought with me clothes, toys (bubbles, candy, gum, skipping ropes, and little misc items from the $ store) and the maids appreciated it very much. Now, I travel lighter, and just tip in American $. Being a bartender myself, I'm very generous, but then it's only money that I know I'll be making when I get home. So, I tip on a daily basis, 2-3$ at lunch, 5$ at dinner, and 2$ daily to the bartenders at the resort. Off resort at the bars, it's usually 2$ the first round, then I tip at the end of the nite 5-10$ depending how nice they are. I've noticed that I've always been given more attention if I tip the first day. That's me though, don't feel like you have to tip, but knowing the locals wages, it makes me happier knowing that they appreciate it. Do what you feel will make you happy.