Amex has an offer out right now for $40 off of a $200 purchase at Renaissance hotels.
Not sure if anyone posted about this yet, so, sorry if you did Just noticed it. Valid until 11/30/16
If you don't see it, you can use Twitter (everyone's favorite millennial social media platform) to enroll by tweeting @AmexOffers #RenHotels
Note: You need to use amexsync to sync your twitter with your amex account.