One popular strategy is known as credit card churning — opening and closing cards to earn sign-up bonuses and rewards.

This card features rich benefits for foodies, including lucrative rewards at restaurants and U.S. supermarkets, plus various dining credits that can help offset its admittedly pricey annual fee.

The Pokemon Sun and Moon-themed will packs introduce the first immersive Supporter card, while the new event will highlight the legendary Rayquaza.

This card offers excellent rewards — not to mention transfer partners — for an unbeatable price. It doesn't offer the perks of an airline- or hotel-branded card, though.

Turn dinner with friends into free travel or extra perks. These three credit cards reward you every time you pick up the tab ...