The old saying goes, "There ain't no such thing as a free lunch." Perhaps—I haven't checked every diner on the planet to verify that claim—but that doesn't mean you can't occasionally get something ...

Experts warn consumers should be careful.

Cryptocurrency exchanges compete aggressively for new users, and sign-up bonuses have become a standard acquisition tool across the industry. These promotional offers range from small token rewards to ...

MarketWatch Picks highlights items we think you’ll find useful; we are independent of the MarketWatch newsroom. We earn a commission from some links in our articles. Learn more Is a sign-up bonus on a ...