The AmazonSmile program donates 0.5% of most all of your amazon.com purchases to a charity of your choice. Just make sure you go to https://smile.amazon.com and sign in with your regular amazon email address and password. You can choose from all the 501(c)3 charities which have signed up for the program, but of course we recommend Carson's Crew!
The key is to go to https://smile.amazon.com instead of the regular amazon website or else it won't work. The websites are basically mirrors of each other, and the pricing for you as the customer is the same. The difference is, Amazon will donate 0.5% of your purchase to the charity. Make sure to update any internet browser bookmarks or shortcuts you have. If you use the Chrome internet browser, you can install this extension which will auto-direct you to the new site so you don't have to think about it.