It's a problem in the countryside. We live in an area where the most common surface for a road is sand or dirt. People wander in and out of homes all the time and the dust blows in from the desert. Stone or tile floors are cold and hard, and in village homes most people sit on the floor rather than on furniture. Rugs are nice but they collect sand and dust and really hard to clean, so these woven plastic mats are a great solution to the floor covering problem. They provide a bit of cushioning, a bit of warmth and the sand and dust just sift their way through the mat to the floor surface. The mats can be rolled up, the sand swept out, and you are good to go. When you want to wash them, all it takes is a hose and few minutes to let them dry in the sun. AND they are quite cheap.