#1 Use The Stairs
Stairs can be a great exercise element. Regardless of if you walk up and down them or run up and down them, they are a great leg and cardio workout. You can find stairs in lots of different places that are inside and safe to use for winter workouts. You can walk the stairs in your office building, or head over to the local mall and take the stairs inside the mall.
Find a building that has inside stairs that you can do some workout intervals on. Walking and running on the stairs, even for ten to fifteen minutes, can be a great way