It’s easy enough to come up with decorating ideas if you’re living in a three- or four-bedroom house. You have plenty of rooms to try out any idea you like. But what if you’re living in an efficiency apartment? We’re talking one room, a bedroom and a bathroom that’s smaller than most closets. In a space that small, how do you decide which of the trendy decorating ideas you want to use and which you’ll save for that day when you buy your first castle?