*Make a Beautiful Letter or Number Mosaic - This is a very easy project, even if you have not done mosaic before. Use a pretty old plate that is chipped or cracked. I love the idea of using old plates.
Simple built-in to create a mudroom and/or storage anywhere from an entry, to kids room or in a laundry room by adding shelves or a deeper bench for sitting. Put drawers under bench or have the seat lift up to store things.
This is the perfect place to put a pull out bed. I always look at those beds and think they're impractical because it's too hard to leave all of the open floor space needed for one but I'd happily do it for this library/reading space