Want thinner shelves- Floating shelves above the toilet in this bathroom is much prettier and more useful than the pointless towel bar that was there. *Everything on the shelves is from Ikea. The basket holding the toilet paper is from Crate and Barrel.
If you have the drawer space, what a wonderful idea! Instead of stretching and climbing to see all your spices in the top cupboard or on the spice rack, keep them accessible and visible in a spice drawer.
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.