Not only will your drinks stay cold the next day, they'll help keep your food chilled. To keep your picnic festive, bring a colorful and comfortable blanket.
Extra towels can serve as pillows when sunbathing or napping.
Try to keep bees away with a sprig of fresh mint placed on your blanket. Set up your picnic in the shade. Food spoils quickly in hot weather. Throw away any food that's been out of the cooler for more than an hour.