not sure if this was posted (did a quick search), but if you fill 10 gallons at most shell gas stations in the northwest states, you get a buy 1 get 1 free whistler pass (or can be used for just about any big mountain).
if you have a big truck or something u can fill 20 gallons and get 2 passes at one station. you have to make 2 transactions tho (10 gallons, get receipt, 10 more gallons).
i just came back from a roadtrip to oregon and did this twice (could have done it 3 times). its good for the current season.


http://skifreedeals.com/