I live in a '65 vintage house, with tongue and groove oak flooring
throughout. We bought the place in '96. The flooring had some kind of
tough, clear finish on it prior to us moving in. Today, most of that finish
is gone/worn off. The flooring looks kind of dull without the finish.
Is there any kind of easy, inexpensive stuff we can put down which will
improve the floor appearance, short of total refinishing?