If you only put your formal dining room to its intended use -- you know, formal dining -- a few times a year, you'll love seeing how you can put that valuable space to use in a different, unique way on those 360-ish days of the year when you aren't entertaining. Got kids? Your formal dining room can easily become a kid-friendly haven for arts and crafts that gives you lots of extra, space-saving storage. The best part? It can quickly convert back to its elegant dinner party roots.