I don't own many pieces of furniture due to the space they take up. And while I am fine with making my guests sit on the floor while I sit up high in an expensive office chair, some folks with overblown notions of hospitality feel visitors and hosts ought sit at the same eye level. What to do?

Director's Sideboard

I suppose I could pick up some space-saving furniture, like the CÓM-ODA ("comfortable," in Spanish) by Valencia-based design firm Mr. Simon. When it's not busy being a sideboard, it turns into a bunch of director's chairs:

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Perfect unless you're inviting friends over for a buffet, in which case you've got a real O. Henry situation on your hands.

If Voltron was a Bench

The AA Stool by Torafu Architects has a similar concept. At first blush it's a bench…

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…but in fact it's a bench made up of a bunch of little friends.

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Had to be CAD

For something fancier-looking that nests, there's Shin Azumi's AP Stool:

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If only subway seats looked like that. If the sitter kept their feet within that little valley, there'd be no way for them to manspread.

A Patiently-Carved Fit

Crave something more simple, and of a heftier weight that will make the deliveryperson earn his money that day? There's Sakura Adachi's chunky Zig + Zag stools, which are 2-in-1:

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Wall-Hanging Table

Of course, seating isn't much good without a table. Ivy Design's Mirror Table is a good choice, at least for those of you that are spiritually strong. I say that because as you stare into the mirror, it steals your soul, turning you into a white shade:

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To rectify this, you must first deploy the fold-out legs using only the power of your mind:

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Then you can begin to lower the table, and as you touch it you are magically restored to being a person again. (The bottom legs will be curiously out-of-perspective, but you'll be too thankful to care.)

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Unfortunately, as the table touches the ground you now turn completely invisible. 

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Should you prefer a table like this without the sorcerous side effects, they also make a model that replaces the mirror with a picture of a younger version of Sigourney Weaver from Aliens. And the table is actually detachable from the wall, as you'll see in the video below: