You have to hand it to these guys from Clei. These Italian transformation furniture wizards specialize in researching and manufacturing furniture that let you squeeze out every inch of usable space at home. Nearly all the furniture featured here has at least two functions built in (and some even more!). These multi-purpose furniture would come highly recommended for people struggling with floor space and those looking for ways to improvise.
To fully get a picture of how cool these transforming piece of furniture are, check out this video from Resource Furniture (They are importers for Clei in the US region)