When the weather was nicer, I would walk them for 45 mins in the morning. Now that it's cold and dark, we don't walk outside. We don't have sidewalks/paths where I live, so it's dangerous to walk a little dog in the dark. Since Lucy still has a lot of energy, she walks on the treadmill

II find it keeps her sane in the cold weather, burns off all that Yorkie energy.
Teresa