I can't be the only one who got this:

http://joinmarriottrewards.com/rewardsplus2014/ml


We appreciate your loyalty to Marriott RewardsŪ and United MileagePlusŪ. So we've teamed up to double your rewards. It's our way of saying "thank you" for being one of our top members, worldwide.

Get twice the rewards November 1, 2014 through February 5, 2015:

Double Marriott Rewards points with every paid stay at participating MarriottŪ hotels, starting with your 2nd stay* — up to 30,000 bonus points
Double MileagePlus award miles on all paid qualifying United AirlinesŪ flights (S-fare class or higher) — up to 50,000 miles
Simply register by January 5, 2015. Then start earning double rewards — and fly away to your most rewarding stay.