Do you have leftover (or just about to spoil) cream that you don't know what to do with but don't want to throw out?
Additionally, if Sharon is right about peak oil and you end up buying a cow (see #3), you'll want to make butter.
However, if you can't spare the electricity to make the butter with your Kitchenaid, I've posted step-by-step instructions on how to make butter using just a Mason jar and your two hands over on Crunchy Chicken Cooks.
Thirty minutes or less, start to finish! Check it out!