Curse this heatwave! If your office is running the heater a little higher than you'd like, this DIY personal AC unit can keep you cool.
Weblog Philippine Stuffs shared this genius design based on evaporative cooling. If you've ever stepped out of a shower into a room with a fan, you know how chilling this effect can be. To make your own, just attach an old PC fan to a refrigerator deodorizer, then put a wet sponge inside the container. The fan sucks the warm air through the sponge, and blows the newly-cooled air out the other side. It won't cool an entire room, but if your desk is a little stuffy, this is a cheap way to stay comfortable without bothering coworkers.