How to Build a Homemade Air Conditioner for Just $8, charge your phone using Gatorade and an onion

I've seen this done before, but it's explained really well here - a styrofoam cooler, cheap fan and two dryer vents:

How to charge an iPod using Gatorade and an onion:

Check out the other stuff at the HouseholdHacker youtube channel. Via Geeks Are Sexy.