Window seat with built-in bookshelves. Could use IKEA: Hemnes daybed kitchen pullouts each), and Billy bookcases each or with uppers each). Total cost with knobs, trim, paint, etc. would be about The skylight is a nice touch too!
Custom and massive (hard to tell in this photo) kitchen island/eat in table made from salvaged yellow pine beams from a potato chip factory that had a nasty fire some 60 yrs ago and built around Fun project and learned lots!