Pillow room: don't spend money on couches or lounge chairs and buy a really nice movie screen. (This would be really fun for movie night, to just move all the living room furniture and bring out the pillows!
Tub in shower - kids can splash and swim as much as they want! Brilliant idea for adults too. Take a bubble bath and shower off at the end. Just step out of the tub and shower off! Great idea for future house! Master bath in bedroom.
Click through to learn how to make your own DIY sliding barn door! This would be SO awesome in the livingroom to open up that spare bedroom as an office to the living room. Then, it can still be used as a private bedroom for resale value.