The wood floor in our hallway is in need of help! The house is a "between the wars" property and the floor is original. I polish it from time to time with an olive oil/white wine vinegar & water mix which brings up the shine. One part of the hall gets the sun and, having moved a cupboard recently, I have a sharp dividing line between where the cupboard was and where the sun hits. I don't want to strip the floor - is there anything I can do to the bleached section to help with the colour?