When planning an act of volunteering like a beach cleanup, make sure your picnic is eco-friendly as well. Pack the asparagus salad in reusable plastic containers, wrap the sandwiches in recycled parchment paper, and place the granola bars in a cardboard box. Fill a lidded jug with the tarragon lemonade and pass out clear plastic glasses at the beach. Spread a durable blanket on the sand and give each guest a different-colored cloth napkin. To make the cleanup smooth and easy, set out recycling bags.