I'm not wasting electricity, but using it wisely ON A TIMER. If you look at fuel use on a non warmed engine, it is HUGE until the engine warms up. Also, engine wear takes place in a cold engine, so actually i am SAVING the planet. I only have a 2 mile ride to work, so I would rather my engine be warm to start with, and use only a tiny bit of fuel, instead of burning a lot of fuel and just barely getting the engine warm when i get there. even though it sounds like i am making up b.s., it is actually true. Plus my DD is a 1.5l Colt, 1995. I refuse to scrap it, but instead employ the services of a mechanic to keep it running in top shape, thereby saving the HUGE amount of resources needed to build a new car. I bought a timer that measures in minutes, so that during the summer, I'll only run the timer for 15 minutes prior to my estimated time for leaving for work.