After moving to Florida, we quickly learned that it's a bad idea to store many things in a hot garage. My wife has a lot of Christmas decorations, so I took advantage of an unexpectedly large crawl space (height tapers from 8+ feet to less than 2 feet. The initial dig, terracing, shelves, and lighting for the tallest portion took me about a month. We then learned about Florida humidity. We hired someone to install a plastic barrier and dehumidifier because they could get a much more efficient unit than I could. (We never noticed any increase in utility bills.) So... here are photos of our 1,000 square foot humidity controlled "Christmas warehouse" that stays between 60 and 75 degrees F year round.