Amazon has the WD-40 2-Way 12-oz. Spray w/ Straws 3-Pack (490050) for $18 with free shipping on $35+ or with Prime. List price: $28. Drives out moisture and quickly dries out electrical systems to eliminate moisture-induced short circuits, lubricates moving parts such as hinges, wheels, pulleys, rollers, chains, and gears.
Has excellent Amazon Reviews.