After months of my Facebook friends raving about their 
instant pots, I bought one—and
    now I use it for everything!  Since Walmart stopped Price Matching (sigh, cry), I now use their online grocery ordering service.
    They often have a ‘beef chuck roast, 2.1-2.7 pounds’, for about $10.50 (January 2018).  Every time I've ordered it,
    they've given me a bigger one for the same price!  I cut it in half, thus getting two 4-person meals.