To save money on your power bill - use a toaster/convection oven to cook your meals and for your baking whenever possible. Mine will hold an 8x8 pan and has two racks. It keeps the kitchen cool as well.
Cleaning a Toaster Oven
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Toaster Oven Nachos Recipe
Making Cookies in a Toaster Oven
Broiler Creates Too Much Smoke in Kitchen?
Uses for Oven Racks