Costco shoppers are dedicated to the retailer's bulk discounts and rotisserie chicken, but you need to make sure you have the right credit card before you shop there. Since 2016, Visa has been the ...

Discover cards are currently not available on CNBC Select and links have been redirected to our credit card marketplace where you can review offers from other issuers like American Express or Chase.

Fast becoming mainstays of gamers and creative pros, 4K monitors are falling in price—but getting more complicated to buy. Here's how to shop for an ultra-high-definition (UHD) display, plus the top ...