More Energy Saving Ideas

Insulate Hot Water Pipes
Insulate your hot water pipes, particularly if they are copper pipes. Copper is an excellent conductor, it is used for cookware because of its conductive properties. Your local home improvement store should have pre-formed lengths for your sized pipes, they are already split so all you have to do is snap them around the pipe, some even have adhesive pre-applied so you just have to pull off the protective paper and squeeze then edges together. The insulation can cost as little a $1 a foot.
If you don't know the diameter of your pipes, just take a piece of string and wrap it around the pipe, then measure the string and divide by pi though 3 is good enough since you know it will be only one of three sizes: 1/2", 3/4" or 1".

LCD TV
If you are in the market for a new TV consider an LCD TV, it uses only about a tenth the energy of a CRT TV and about half compared to a Plasma TV.
LCD monitors for you computers have the same advantages.

Shade the South Side
Shading the south side of you house will reduce the heat from the Sun that heats up your house.
Trees are great as they loose their leaves in the fall and so you get some solar heat in the winter, but shade in the summer.
Trellises do well, if planted with a vine that looses leaves in the fall.
Awnings over the windows make a big impact since windows have little insulation value, Installed correctly they too will shade in the summer and allow sun in the winter, since the Earth is tilted on its axis the Sun changes its height in the sky and this works great.
A verandah or overhanging roof will act like an awning over the entire side of the house.