I agree with the budget of $100 per person, per day. Some days you will spend more, some days less. I find that my wife and I more often spend less than the $100 budget. On days when we have a big Jamaican breakfast, we were usually not hungry for lunch so we just have a snack in the afternoon before dinner. On our last trip we were more lazy than usual and we found ourselves often getting take-out for dinner (from Jenny's or Pablo's). This definitely helped reduce meal costs.