The pool and the beach are great, but if we're being honest, the best part of the summer is going to barbecues every weekend. Grilled marinated chicken, spicy shrimp, juicy steaks, saucy ribs, crispy-edged burgers — these are the things we're dreaming about when we're trapped inside all winter. But a good barbecue doesn't stop with the entrees. The experience is only complete if you can also load your plate with a variety of scrumptious sides. Store-bought macaroni salad and potato salad…