Ideas

Food

Turn your yard into an organic garden. (Seattle area)

Energy

Install solar panels. (WA)
        Puget Sound Solar will do home assessments to help you determine which product(s) would best meet your needs.  They charge the following rates:
                  $80 - Seattle area
                  $100 - King County outside of Seattle
                  $125 - outside of King County
Install a wind turbine.
 

Car

Turn your Prius into a plug-in hybrid. (Bay area.)

Home

FREE energy-efficient showerhead and bathroom-faucet aerator (Seattle area)
       You don't need OurJoules for this one, since it is free!  I just wanted to pass along the info.