Every first weekend of September, Labor Day serves as summer's unofficial last hurrah. The three-day weekend is a last-ditch opportunity to soak in the waning rays of sunshine before fall creeps in (plus, obviously, to maximize on the chance to travel without taking PTO). Of course, Labor Day weekend marks the tail end of high-season rates, but deals are out there if you know where to look. Even a spur-of-the-moment trip doesn’t have to put a dent in the wallet if you set your sights on a city instead of the standard beach vacation.