Take advantage of great prices now on sweet potatoes/yams.
33 cents/lb at Kroger
29 cents/lb at Food City
Don't just buy enough for Thanksgiving, buy all you can use for the next month or two. They'll last that long if stored well. Mine stay in an open box under my kitchen table, at around 60 degrees. Ideally, they should be at 55, but my basement gets too cold. Whatever you do, don't put them in the fridge.
I'll use them for... sweet potato fries, baked sweet potatoes, an African stew recipe and more, then I'll cook, then freeze, the rest.