The Deal: Participating Lake Tahoe ski areas have donated a set number of lift tickets to the Sierra Avalanche Center that are only valid on a specific day. SAC is selling these lift tickets at a discounted price and retains the proceeds from each ticket sale.
The Details: You have to buy the tickets online (see link below), then pick up at the SAC booth that day. Check the site often to see when tickets go on sale.
More Info: Sierra Avalanche Center