When you land on a point, such as a hip, knee or elbow, things tend to break or dislocate. Be wary of walking in the street, even if the sidewalk hasn't been cleared of snow. It takes vehicles 6 to 8 times the distance to stop on snow or ice as on dry pavement . Car windows and windshields tend to be fogged or snowed up making good visibility minimal. Also be wary of walking in parking lots.
Vehicles compact snow and the surface can be very slippery.
When you get into your car it may be safer to back up to the seat and sit down, swinging your legs in afterward. Getting out is just the reverse. Two feet on the slippery ground is safer than one. Be aware that reaching into the vehicle to load or unload groceries tends to counter pressure your feet backwards from where they are precariously resting on a slippery surface. Entrances to buildings can be dangerous.