Get the drinks from the car and put in the ice chest. Go buy ice (6 bags of 20 LBS or. 7 bags of 16 LBS) from Safeway or BevMo or your choice supermarkets. Put the ice on top of the drinks.
Empty cars, clean & cover table, setup forks and napkins, put out drinks & water in coolers (in ice), setup serving spoons and serving gloves, cut the grapes into chunk size servings, put the salad into serving bowls, setup sandwiches into the trays, put out the chips with lunch, and put out the appetizers (grapes, carrots, hummus, mini biscottis, and chips)
2 people on sandwiches (basically monitoring people to just get one or two sandwiches - the sandwiches will be cut in half so they might be a bit small for hefty eaters; I just don't want someone to pig out and get 4 or more sandwiches. If they want more, they can always come back for seconds after everyone is served.)
1 person on veggie & gluten free lettuce wraps
1 person on the crunchy vegetable salad
1 person on grapes & cookies
1 person on sandwiches and 1 person on salad.
Help remove table coverings, wash serving dishes and move trash bags to dumpsters. Help pack the supplies back into the cars.