I've only gone when I was a younger with my parents. It's cold and beautiful. Are you going skiing? Do you plan on doing Reno also since it's so close by?
Lake Tahoe is just BEAUTIFUL! I was there very briefly years ago for a mountain wedding, we left early to avoid getting snowed in, so I don't have any recommendations!
We ended up in Reno for the rest of the same vacation, it was right in the middle of Spring Break and the crowds were bad!
__________________
"Go either very cheap or very expensive. It's the middle ground that is fashion nowhere." ~ Karl Lagerfeld