Three steps, then it runs without you.
The thing you want, your city, a radius, a price range. Everything else is optional.
Craigslist, OfferUp and Facebook Marketplace, checked in the background. You close the app; it keeps going.
A push as soon as a match turns up, with the Deal Score already attached. Message the seller from the alert.
Searches are cheap — most people run one for the thing they need now and a couple for the things they'd grab at the right price.