I've ridden all the snowy days so far I think.
My ride to work had between 1 inch and 3 inches of snow, which seems to me to be the perfect balance between lovely crunchy snowy noises, and too much effort / sticking in the snow.
I have to say though, 20 miles (the offroad way to work) was not at all easy, really felt like hard work.
There is something great about descending a completely featureless track knowing that underneath there are roots and boulders and all that, and praying that you won't hit anything too big, or fall off any drops that you can't see.
Now riding on sheet ice covered roads – that *is* rubbish. One of the roads near my work has speed bumps and complete sheet ice – that was a bit scary, back wheel spinning on the uphill bits, I ended up riding on the pavement after a couple of slippery moments.
I guess I don't have the problem you have with the road riding to get to the off road though – my closest trail is under a half mile away, and even the slightly further away ones I rode yesterday start 2.5 miles from my house.
Joe