Smart Kitchen Space-Saver: Dish Drying Closet Above The Sink. It's a dish rack that's integrated into a bottomless cabinet above the sink, so that the step of drying wet dishes is skipped completely, and are placed there to dry, out of view.
Built-in bookcase for cookbooks! I just want built in bookcases in every room for books! I'll carry a book from one room to another and have a dedicated shelf for my current read. Although, having dedicated space for cookbooks is smart, too.