Reduce Traffic Pattern Wear
Carpet in heavily traveled areas receives the most wear. For better appearance and longer carpet life, try to reduce the amount of traffic on these areas, and use small rugs in front of heavily used chairs or other furniture.
Be sure to remove and clean these smaller rugs while vacuuming the primary carpet or rug. It’s also very helpful to occasionally rearrange furniture, and reverse area rugs.
Although some change will eventually occur in the texture of your carpet, reducing the wear on paths and in front of furniture will slow the change.
~ from The Carpet and Rug Institute