How long do I microwave a baked potatoes for?

Wow, good question. I would have to say about 5 minutes, but I have never baked just one potato at a time.

The whole procedure is this:

Using a fork, puncture the potato at least once on all sides and both ends. Wrap in a paper towel and bake on high in the microwave. I usually do 4-6 at a time and space them around the turntable beside each other so none are in the middle and set the timer for 15-18 minutes. They all come out perfect and are begging for drawn butter or sour cream.