In many other countries, taking your shoes off upon entering a home is commonplace. Not only is it nice to do, but it's good for the air quality of the house residents and guests. Along with regular vacuuming and regular maintenance carpet cleaning, this is one of the best ways to keep your carpet looking fresh. See the WSJ article below to learn more!

https://www.wsj.com/articles/is-it-healthier-to-remove-your-shoes-at-home-1491649200