Whether you’re camping or spending a day at the beach, bring along the Road Shower 4 solar shower system from Yakima. The product consists of a powder-coated aluminum tube that attaches to your vehicle’s roof rack. The seven gallons of water (enough for three to four showers) you add to the tube from a standard garden hose can be pressurized (up to 65 pounds per square inch) by attaching a bicycle pump or tire inflator to the relief valve. The attached 55-inch hose and nozzle releases the contents when needed. An LCD display shows the water’s temperature. The Road Shower 4 sells for $440, including all necessary hardware, at www.sylvansport.com.