Sex in crazy places..

My boyfriend and I are working on finding a spot together. Life threw us some curve balls, so until we're able to save up enough money, we're both residing with our parents (he with his and I with mine). When no one is home, of course we jump at the opportunity to have sex. Or we sneak when there are people home.. Other times, we go out of town for a weekend and rent a hotel. That can get pricey, however. Car sex is not exciting anymore and I've run out of local options to sneak off to get off. Any suggestions that won't get us in trouble with the law? (Less likely to get caught) Where's the craziest spot any of you have gotten it on?