change the trashbags into ziplocs. bring several, large & small. carry your liquor & hot sauce home in it, and your wet last-day snorkeling clothes, water shoes, anything sandy. while there, keep your money & cameras/film in them. bring that xtra dry t-shirt in one for a dive trip. always handy.

benedryl cream & neosporin, waterproof bandages. ya never know. i got bit & cut, frank got fin blisters. i was glad i had them.

advil & pepto. be prepared, just in case. they are probably already in your cabinet, don't take up much room and are $$ there.

xtra hat & pair of sunglasses.