Most of these should be common sense, but some fall under the category of "sometimes you gotta do what you gotta do." Please feel free to share your money saving strategies.

Turn off lights and appliances when not in use.
Insulate your water heater.
Turn your water heater down to 120 degrees farenheight.
Change/clean AC/heater filters & intake registers monthly.
Remove dryer lint after each load.
Prepare meals at home.
Buy food, household goods and personal care items in bulk quantities.
Purchase more basic and less prepared foods.
If you smoke, make your own cigarettes. (it's easy)

So, what are some of your thrifty tips?