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It isn’t all about the Swiss army knife, people (so stop saying that, okay?). Sometimes, you just need a great single-use gadget—a tool meant to accomplish one particular task. Below, some favorites, many of which have great money-saving potential. (Many are also food-centric. A comment on single-use gadgets or my psyche? This is for you to decide.)

Ice Cream Maker

Best party pleaser in the book: ice cream personalized to your guests’ taste. Best Friday night: ice cream made to your taste! Ginger/pistachio? Ketchup/hot dog? Go for it. A good ice cream maker will cost you upwards of $50, but two pints of fancy-pants ice cream from a store could run you $17 (seriously, I paid that once), so figure huge savings down the line. If you’re feeling frisky and also really upset that you can’t use your ice cream maker for another purpose, there is this thing, which is some kind of ball you kick around and out of which ice cream subsequently emerges. (Okay, that “gadget” is asking for a double entendre.)