Related: Starwood AMEX Linky (The best credit card for spending that’s out there!)
This promo isn’t nearly as lucrative as Hyatt’s promo, but it’s better than nothing.
Registration opens on 05/01 and closes on 06/30 at the above link.
For every 3 stays between 05/01 and 07/31 you get 1 free weekend night (Friday, Saturday, or Sunday) at any Category 1-6 Starwood hotel. The free nights must be used between 05/07 and 12/19.