I should start by saying that it helps that my mother is not that normal.
For Passover this year, she bought $150 worth of standing rib roast, but had no idea how long to cook it. I hauled out my copy of Mark Bittman's "How to Cook Everything" and got excellent, clear instructions, that mandated the use of a meat thermometer. Foolproof! Of course, she didn't trust me, and the meat, though succulent, did get a teeny bit overcooked. Anyway, it was good and we all enjoyed it, but she had way overbought, which is appropriate for a Jewish mother cooking a holiday meal.
So today she made the world's most expensive pot roast out of the leftovers, with kasha for the mushroom gravy, and invited me over with the little Cupcakes. I am telling you, this was comfort food to the nth degree. In fact, I highly recommend going a little nutso with your prime rib purchasing, just to enable something like this.