We also made our closet doors in the mudroom out of salvaged materials....the falling down chicken coop we tore down last summer provided us with some awesome 140 year old plank boards. We couldn't afford to buy wood to make the giant closet doors so my husband built plank doors with it.
Another repurposed item in this room is the awesome basket that I found at my favorite shop Yesterday's Best. It was only $15 and I use it to stash all those plastic bags that one accumulates. It is a great place to store them until I get them to the recycling.
Below is the shelf that my dad built..I attached lots of hooks so that our guests have a place to hang their coats.