Someone stained the bedroom floor upstairs very dark brown, almost black. It shows every speck of dust.

I thought about refinishing it years ago, but removing old stain would almost require a professional sander. Maybe it was "to hide a nasty stain that's lying there" (♪♫♪), somewhere. Why else would they do that?
The threshold into the closet was covered with green and white paint. I removed the paint and planned on leaving the threshold natural, but it looks like someone left the light on in the closet and it's shining under the door. Found an old can of Minwax stain at my parents' place. Dark walnut. It's a perfect match.

How lucky is that?
It's not the cost of new, it's the shopping, trying to find a match, and then getting something that you use a tablespoon of and hate to throw the rest away.