Do this now: Hilton winter promotion

While the details of Hilton's winter promotion have been known for some time (I updated my Hotel Promotions page a few weeks ago) , registration for the promotion has finally opened.

You'll earn double base HHonors points on stays of 2 nights, triple base points on 3 night stays, and quadruple base points on stays of 4 or more nights between October 10, 2013 and January 31, 2014.

Register now, before you forget, and see the list of non-participating properties here.