If your foyer lacks architectural interest, secure an oversized decorative wall shelf or bracket on the wall directly facing you as you walk through the door. I like to place them on the wall at least five feet high or higher depending on ceiling height. This is a great place to display an elegant antique vase or urn. In a less formal setting you may want to display a simple pot of trailing ivy to add softness. This is also a great idea because it keeps your floor space free of clutter.
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.