I live in a mid-1800s house, which I plan to sell this Spring. The original (I think) wood flooring has gaps between the planks, some pretty sizable (photos follow).
Is there any good fix for this? I've seen people use wood filler/epoxy, and it didn't seem to turn out well. Perhaps doing that and painting/dying it black might work better.
I've heard the "old" solution was to pack those spaces with rope, but I don't think that would look better than the status quo.
Photos, big gap: