I didn't get it either, so I Googled it. If you go to the MyPoints website, there's a place in the top right corner that says "Point Perks" under your name and points. If you click on it, a thing pops up that allows you to enter the codes people have been providing on this thread. I really don't know how you find the codes yourself, I've just been using the ones other posters have provided. I'm sure there is a way to find clues but it hasn't been explained the way they did with the Snowflake game etc.