Driving? Buy a lift ticket in Squamish at the 7-11. Double check, but they've sold discounted lift tickets in the past.
Go early. It's a solid 2 hour drive. The Sea-to-Sky is a gnarly road. Take the tram once to see what you get for a $45M+ lift.
The Garibaldi Lift Co. is where most locals hang out after. The Whistler Brew Pub had a thing where if you said, "we're some of the good guys" it meant you were local. One of the guys I was with was asked/answered where he worked. This was the password for getting 25% off your food & bev.
Ski the upper mountain. If you see a sign for the Sudan Couloir, go elsewhere.
Sent from the driver's seat of my car while in motion.