Murphy's Oil soap is my go to cleaner for just about everything. But it won't work on this. I used Howard Feed-N-Wax Wood Polish and Conditioner on it. I'm considering using Howard's Restor a Finish on it, using a bit of steel wool. I would have to do the entire piece if I do that to keep the color and finish consistent. But my real question is, will using that product lower the value of the piece significantly?