If you let people walk on snow, it turns to ice. Shovel that snow asap. Also keep a brush on your doorstep and always use it to clear off the small patches of snow that falls off your shoes, lest you soon have patches of ice there.
+1, I learnt too late how useful a brush is, also for clearing small puffy snowfalls much faster than shovelling
+1, I learnt too late how useful a brush is, also for clearing small puffy snowfalls much faster than shovelling