TripRewards is offering double points or double miles (registration required) for your first four stays booked by May 15 and complete by June 15. (The registration page suggests that the offer is valid through May 15, but the terms and conditions clarify that stays must simply be booked by that date and can be consumed up until a month later.)
I might use this at a Wyndham property, but beyond that it’s of little use to me as I really don’t frequent Baymont Inn, Days Inn, Ramada, Super 8, or HoJo properties…