Bus to the slopes -- and back again in a day? What a novel idea! You won't be hitting the powder at Aspen or Vail, but funky Eldora still offers plenty of great snow for skiing and boarding, and a nordic center maintaining a plethora of marked cross-country trails. And you can take the bus: RTD's Route N makes frequent trips from Boulder to Eldora during ski season for only three bucks each way; you can also use a transfer if you're traveling to Boulder from Denver (take route B from Market Street Station to Boulder Station) or other surrounding communities. Even if you were driving, you'd avoid the kind of traffic that slows down I-70 and other routes into ski country -- but this way, you don't even have to think about it. It's schuss the thing.