Jessie, every time when I saw your avatar I must smile:-)
Regarding the snow shoveling. I read an intersting calculation. To clean up a driveaway from a couple of inches snow requires the same amount of work/calories than to move a piano up two floors.
So it seems you do have a very effective workout routine already.

Oh, how much I envy you... Having adult kids, living in South CA - I miss both kids, and the snow. What a wonderful memory: shoveling snow from our house all the way to the school, so kids did not miss even one day...