Bottom line for men (our guide for a 7-nighter): One suit, 2 pairs of dress slacks. Different shirts each night, with the 1st and last night shirts being re-qorn during the day. Daytime is 3 pairs of shorts, and about 5 fresh shirts. Throw in one pair of pull on shorts and a T-shirt to throw on when you get back from dinner. Oh and don't forget the swim trunks. Shoes: 1 snaker, 1 dress show, and flip-flops for by the pool.
Hope that helps.