Enter the twelve-digit alphanumeric Official Code, which can be found on the “What I Know For Sure” page of the December 2017 issue of O, The Oprah Magazine OR you can try Code: INSTANTWIN17 for a chance to Instantly Win a prize package consisting of items chosen by Oprah, listed in the 2017 O List Favorite Things edition valued at $14,573 along with $4,370 in cash towards taxes. (Must be 21, US, Enter once, Ends 11/21/17)