pocket doors - not your average expected pocket doors - these would be perfect for the House of All Houses. I'd use this approach for the master bedroom doors, but add frosted glass in the wrought iron parts, for privacy.
double barn doors
Ideas Furniture. Excellent Barn Door Closet Doors Design Ideas. Enticing White Stained Wood Contemporary Sliding Door Closet With Mirror Featuring Black Metal Oil Rubbed Bronze Decorative Sliding Door Hardware And Big Mirror On Sliding Door. Barn Door Closet Doors
25 beautiful master bedroom ideas + a Lush Decor giveaway - My Mommy Style
best of the web: barn doors on a budget. Contemporary 4-panel barn door. Build the door and hang it with a kit, with how-to help via @paperdaisy
Solar Roof Tiles - Look much better than normal bulky solar panels!