Unless you've left tropicals out there in the garden -- and in which case they'd be dead by now, anyway -- all this snow can actually help your dormant perennials. As any Eskimo will tell you, although snow is pretty darn cold, it's actually an excellent insulator.

So when you're out there shoveling today, dump the snow from your driveway and walkways into your perennial beds, as long as you haven't salted the area. It will keep the soil temperature from fluctuating and protect against heaving (the lifting of bulbs and root crowns).