When sustainable building advisor Megan Lea set out to build a backyard retreat, she knew that reclaimed materials would figure prominently into the design. - Diana Budds's Backyard Retreat design collection on Dwell.
If you have a large empty wall, you can go in between the studs to create an accessory closet insert and make a mirror door. Such a great way to maximize space! (I like this for the wall color as well as the accessory closet)