A friendly reminder to all about these two sites:
Humble Bundle is constantly selling games, comics, books, and more for low prices. 10% of their proceeds are donated to charity (It’s listed on the site).
G2A sells a plethora of games, keys, and game cards at varying prices. The prices will change throughout the day. I don’t use this often so I couldn’t tell you how it works.
Important: Make sure if you’re going to use these you check game prices from retailers (etc.), so you get the best deal Enjoy