So, you might not have the luxury of huge walls upon which to hang paintings. But, surely you will have some walls, and they can't just be made to look like a pretty space. They must be made to work. If you live in a studio flat, you might want to put a bed on one of them, such as this one here by Furl. Wall beds, or Murphy beds as they are sometimes known, have come along way since they were first invented around 200 years ago, by a guy who, no surprises, went by the name of Murphy.
This, for example, is not just a full-length mirror, it can be pulled down and opened up to become a double bed. Furl also do a version that doubles up as a shelving unit, initially we presumed that the shelves would need clearing when the bed is required, but within the unit is a clever mechanism that ensures that the shelves remain level throughout so their contents can remain on them!