Guides

What a coupon code is, why stores give them out, the different types of codes and deals, and how to use one at checkout without surprises.

A coupon code that won't apply is almost always blocked by a condition. Here are the ten most common reasons and how to fix each one at checkout.

Exclusive codes are discounts a brand creates for one partner only. Here's why brands make them, how they differ from public codes, and how to use them.

Some Black Friday deals are the lowest prices of the year; others aren't deals at all. Here's how to tell the difference before you buy.

Some stores let you add a code on top of sale prices; many don't. How to check before checkout, and how to pick the cheaper option when you can't have both.

Many coupon codes online are expired, copied or invented. Here are the warning signs, the questions to ask, and where working codes actually come from.

"Free shipping over $50" can save money or quietly make you spend more. How thresholds work, what counts toward them, and how to decide if it's worth it.

Which stores usually offer student, military, veteran and teacher discounts, how verification works, and how they compare with public coupon codes.