Give your carpentry work that professional look by concealing nails or screws with wooden plugs. Use a dowel bit to drill out plugs from a scrap of lumber. Dip each plug in carpenter's glue. Tap the plug into place, then shear it off flush to the surface with a wood chisel. Sand it smooth and apply your finish.
For more on woodworking, consider:
5 Easy Woodworking Projects for Beginners
How To: Match End Grain with Side Grain
5 Ways to Get Perfect, Clean Cuts in Plywood