keep papers off of the counter in the kitchen.
Double work space
Built in desk
Nothing beats this beautifully organized home office. More of our favorite looks here: http://www.bhg.com/decorating/lessons/expert-advice/top-pins/?socsrc=bhgpin012514smartspacesolutions&page=7
built in shelving
Paint all the shiny brass knobs with Rustoleum Oil Rubbed bronze spray. EASY WAY TO UPDATE YOUR HOME!
Built-in Bookcase Tutorial
I would make this a pop-up trundle under the window seat. Perfect for a guest room you want to use for other options when there aren't any guests.
Great ideas for hollow-core interior door upgrades
How to build your own "built-in" desk from Ikea Billy Bookcases!