One of the areas where your wooden floor is most exposed to wear and tear is by doors to the outside. Adding a doormat as you enter, be it an entrance hall or garden room, is a very effective way of protecting the floor against small stone, grit, dirt and moisture.
You can also minimise daily wear and tear of your floor under the dining table where chairs are pulled in an out as you sit down or get up by placing a rug under your table.