Amazon Smile provides a great excuse to treat yourself and loved ones–for a good cause–this holiday season. If you shop using and select U.S. Pain Foundation as your designated charity, Amazon will donate 0.5 percent of your purchase to U.S. Pain.

The prices and products on Amazon Smile are exactly the same as Amazon; there is no additional cost to you.

“It’s an easy, free way to support a nonprofit like U.S. Pain,” says Casey Cashman, director of fundraising. “As people with pain, shopping online is so convenient; now there’s an even better reason to do it.

For those who have trouble remembering Amazon Smile instead of Amazon and who use Google Chrome as their web browser, Smile Always is a browser extension will autocorrect you to visit Amazon Smile.