I like baked potatoes. I don't have a microwave oven, and it takes forever to bake a potato in a conventional oven. Sometimes I'll just throw one in there, even if I don't want one, because by the time it's done, who knows?
I keep thinking about it when I think about having an electric stove. When you get home from work, you should just turn the stove on high even if you're not planning on cooking, because by the time it gets hot, who knows?
Adjusting temperatures on an electric is hopeless; what you can do is just turn on all 4 burners to different levels. Then only cook one pan at a time and move it around the stove to get different amounts of heat.