Mammoth Mountain is introducing two new programs that reward return visits. First, there’s the Mammoth Rewards Card, which for a $49 sign-up fee, gives you $10 off each adult non-holiday lift ticket (youth, children and senior pricing available, too). The 11th lift ticket is on the house after the 10th time you’ve used the Rewards Card. The other option is to sign up for the FrequentSki Card, which has no up-front cost, but when you use it to purchase daily lift tickets, the 11th day doesn’t cost you a dime.