San Francisco: Best seafood restaurant in S.F.?
Swan Oyster Depot is fantastic and affordable. It's a San Francisco institution. Get there early to line up at the counter for a breakfast of oysters, shrimp cocktail and chowder.
Truckee: Fun snow-related things to do on the CHEAP?
We love the Tahoe Donner Nordic Center http://www.tahoedonner.com/cross-country for XC skiing and snow shoeing! Bring a picnic and sit outside by the fire pits after your outing. They serve beer and wine, so you can have a fun little apres.