walk-in shower - great way to keep air circulation and not worry about cleaning a glass door or washing curtains. I HATE SHOWER DOORS. If we ever build a house, I'll do a walk-in grotto-style shower and never scrub another nasty door again!
Doors on the stairs to keep the noise down, heat down, and/or pets on one side or the other. Also pretty! Like the glass on these. I like the idea if the laundry room is upstairs. I wouldn't want to carry a hamper through doors on stairs