Beach towel, check! Sunscreen, check! You have the necessities covered, but a few other items might come in handy during your day of lounging in the sand. OmniHotels also suggests bringing large, resealable plastic bags (handy for stashing beach treasures like seashells and sand dollars — or for stowing a wet swimsuit), pain reliever in case a sunburn begins to set in and soothing moisturizer for dry or sand-irritated skin. Of course, a clean diaper also comes in handy for hiding valuable items.