Why not stay home every day?

So here I am, spending the day working at home. Snowplows rumble by, and chickadees flit between the feeder and the snow-covered trees. Wanting to see what everyone else is suffering through, I scan through the traffic cams, and discover that the highways seem to be nearly deserted. Mass Pike, SE Expressway, everywhere I look.

Then I imagine all the gas that's not being burned today. How many tons of carbon dioxide and pollutants have we all saved from entering the atmosphere? How much wear and tear has been saved on the roads and our cars? And those who do have to drive have a clearer way. Shouldn't we do this every day?

Or is the upside outweighed by my (and everyone else's) consumption of extra electricity and heating oil at home?