In January we got carpet installed in the basement. When we bought the house, the two bedrooms had carpet, but the family room, hallway, and stairs going down didn't.
The "before" pictures are actually the pictures I took when we were looking at the house just after we bought it, so the furniture is the previous owner's.
The floor was painted concrete. It wasn't gross or anything, but I definitely wanted carpet. Especially with kids.
The "after" pictures:
Makes the area seem much warmer. Darren also installed some slate by our basement door (it's a walkout) which I forgot to include in the pictures. We thought it would be best to have slate by the door so we wouldn't stain carpet. Especially since that will be the door we use to head out to the hot tub!