Bring some aloe vera, if you get burned you will need some comfort. We also bring a small fan or go to walmart in cancun to get one. After you put the aloe on you can sit in front of fan to cool off, plus during the day if your on the sunny side your room will get warmer. We sometimes take naps if we have had a long night before and are planning to have another long night. A good nap time is from 430pm-730pm not alot goes on at this time.
If you leave your luggage at the front. DO NOT leave your passport, money, credit cards, car keys, etc. Up there. In the event, although unlikely, your stuff is taken these thing will be extremly difficult to replace. It will consume your vacation. Keep these things with you, then lock them in your safe once you get your room.
I've let alot of people that I either knew personally or from the forum put their stuff in my room when they were either arriving before check-in or leaving late in the day.
If you join lots of the games make sure and bring band-aids and blister stuff. Do the windsurf and sailing lessons sooner rather than later. Do check out the Asian restaurant. Bring lingerie. Be ready to have the best vacation ever!!!
Your point is valid but we have seen extreme cases where people have gone down in the morning, reserved chairs and then took off into town to go shopping for the morning and come back in the afternoon to claim their chairs. That's just plain rude. If you're going off to eat or you're in the pool that's fine.. but there are some people who think they deserve more. For the most part I think people are good and don't abuse it. We've watched chairs for friends and vice versa. As for a tip.. If you want the best experience possible join in the games and events. Nobody knows you nobody give a S#!^.