While the quarterly blockbuster promotions with Priority Club are constantly promoted, there are also a bunch of other promotions out there with this hotel chain that are not very easy to find. Priority Club Insider does a great job at compiling many of the hidden promotions. While it is unclear which promotions will work/will not work, it is worthwhile to just register for everything.
For instance, I had a stay at an InterContinental hotel in September, went ahead and registered for all the promotions and got an additional 4,500 points. While I registered for probably 6 promotions, getting half of them at 1,500 points each is pretty good!
I would strongly suggest checking out this site before any stays at InterContinental, Crowne Plaza, hotel Indigo, Holiday Inn, Holiday Inn Express, Staybridge Suite, and Candlewood Suites. Click here to book a stay at any of the Priority Club point properties.