If you've got a spare bedroom and never plan on having company over, then you've got the space to build and run your own desiccant-based air conditioning system.
I mean, sure, some of the stuff that makes the system work are a lil' toxic and you'll need to be cool with having an open flame burning in your home. Also, you'll need several hundreds of dollars if not a couple of grand's worth of diagnostic tools to make it happen, if this video is anything to go by. But hey: DIY air conditioning!
Or maybe just set up a swamp cooler instead.
Image via YouTube
