For keeping pergolas, patios, and other outdoor structures cool on sweltering summer days, Arctic Cove offers a variety of misting kits, such as the Cool Cave, a cordless device that runs on an 18-volt lithium-ion battery and draws water from a 5-gallon pail or a garden hose. Of more interest to the folks building the patios and decks are the Drink N Mist ($10)—a 22-ounce water bottle that also dispenses mist—and the Super Cooling Towel ($15), made from a mesh material that when soaked in water, Arctic Cove says, cools surface temperatures by 30°F. Both are available at The Home Depot. Arctic Cove, 877.297.8911,