Cleanup is key - gullies, standing water in anything breeds evil mosquitos and they transfer dengue, chikungunya and zika viruses. Even if they don't spread the disease, the itching is maddening.

Right on Moose with the lionfish - I don't spear (I would love to but don't have the gear) but when snorkeling, I make sure to point out the lionfish locations to locals with spears - everyone seems keen to grab these monsters. They are very tasty, had them at the Westender, Cliffhanger (on the East Coast) and a couple other spots. Ask for them if you don;t see them on the menu!