For a Regular sized potato (3-4 long), try 50-60 minutes at 350-400 degrees. Either use a baking pan with the potato uncovered for dry crispy skins, or wrap the potato in foil without a baking pan for softer skin (add 15 minutes to cook time if wrapped).
The relationship between parents and adult children is by its very nature a bit of a minefield. In order to rear their children properly, parents have to discipline them. Parents have to tell children what to do, what not to do, and how to behave in various social situations.
My Sunday column described two ways parents can help their adult children buy a home - giving or lending them all or part of a down payment. For parents who don't want to lose control of their money or want to share in the home's potential appreciation, there are other options.