I’m a fan of free points. This took me about 30 seconds. Marriott has launched a trivia game where you can win free points for playing. I played and won 50 points, which appears to be the lowest value that you can win (with odds of 1:2.) So, you have a 50% chance of winning 50 points. You can play everyday! Good luck!
Marriott Launches New Trivia Game Play!
You can play here.