Whenever possible, we use the toaster oven to cook vs using the oven. The amount of space to heat up is much smaller, and becomes more cost efficient.
That's it, simple! Also, there isn't a light in my toaster oven. In the winter when I am done using the toaster oven I leave the door open and a bit of heat escapes, making the kitchen warmer for a few minutes.
Don't forget to unplug the toaster when it is not in use and avoid using phantom power.
