Vending machines are the ultimate self-checkout system (I generally hate self-checkouts, but vending machines don’t yell at you). It’s always nice to get a free gift and doubly so when you are forced to act as your own check-out person at the supermarket.
Today’s invention is a self-checkout incorporating a small vending machine which communicates with the till itself. This could be loaded with packets of eg spices (or other sauces and condiments).
When you happen to have bought ingredients which could be used to make a particular meal, the machine automatically gives you a free recipe and a packet of appropriate spice.