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
Make a Reading Nook With Shelving on Your Bay Window Seating. Your bay window seating may be small but you can make it look bigger and more functional by adding a reading nook on one wall. via marcusdesigninc.
You definitely don't need to find whatever you've got in the drawers scattered all around the place when a drawer flies open. Every closet has a specific storage criterion. Various shelves can be created by employing old books.
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.