Best approach for Heavenly tickets

Have a ski week at the Timber Lodge. Family will likely ski a few days. Anyone have recommendations on how I should buy the tickets? By the day? By the week? I saw the resort had deals on season passes, tho these don't work during holidays.

Any experience or direction would be appreciated.

Usually Save Mart offers tickets at a discount. You can't buy them up in Tahoe though. The closest is either Placerville or Reno. I can't remember if you can get them in Carson City.