After we installed the hardwood, there were gaps around all the edges that looked like this or worse:
He picked up some trip last week or so and was just waiting on a pass lode gun or something like that (automatic nailer) to attach the quarter round. Once he did, it already looked better:
However, it still looked incredibly unfinished, so he taped the floor off, then caulked and painted it:
I think it makes such a huge difference. You wouldn't notice the change specifically, but it does look so much more finished and muuuch better. A few more walls to paint in the family room and then he has to start the whole process in the dining room.