If your stained wood front door is looking old and weathered, or you want to change your stain color, you can refinish it yourself with a few tools and several hours of work. You will need a step stool or ladder, screwdriver, painter's tape, drop cloth or old newspaper, sandpaper, stain in the color of your choice, and spar urethane for exterior applications. A powered palm sander is suggested. You can remove your front door off the hinges to refinish it, however most people find it…