If you are using a pricey rug in your entry. Do what I do. Protect it with a small washable throw rug. Covering the spot most traveled on a daily basis. Then for special occasions stow the throw rug in the closet. Meanwhile, the better rug will stay clean. No space for a rug? Paint an interesting design on the floor. There are a wide variety of stencils that you can use if you do not consider yourself an artist. Be sure to use a sealer topcoat to ensure your painted design holds up to heavy traffic and will clean up easily.
The foyer is the room that greets you as soon as you step through the front door. This is the first space and sometimes the only space guests see of your home, yet often foyers or entryways are neglected. This strikes me as odd. Somehow, I always think of the foyer as one of the most important rooms in the home. The foyer is usually where first impressions are made.