Starwood just added a nice little bonus for their Better By The Night-promotion. In addition to the double/triple bonus points, online or iPhone booking bonuses, you can now also earn 250 extra bonus points for checking in at the property using FourSquare application on your Apple or Android mobile device. You need to register for this promotion to get these bonuses.
All you need to do is to link your SPG account with your FourSquare one. When you are staying at the property, you need to checkin once during your stay to the property using the application. Make sure that the property is correct because sometimes there are duplicate listings for some hotels. You should then see a banner that you have unlocked the offer.
This SPG’s Better By The Night-promotion is slowly getting better with all the add on bonuses.