I often see rolled up towels sitting on the floor next to sliding glass doors. It usually shows up when Canadian winters set in and the floor near the back of the house feels like an ice rink.

If your front entry feels like a walk‑in fridge every time the heat kicks on, you’re not alone. In a lot of homes – rentals and owned – the front door has small gaps that weatherstripping alone just doesn’t quite tame, especially in real winter cold.