Around here, standard equipment includes a minifridge, some camp chairs (should be ok with the city) and several cases of beer.
My dad's hangar at KDVT is essentially a bachelor pad with an airplane in it. He's got an office desk, file cabinets, two large couches, fridge/freezer, plasma TV on the wall with satellite and surround sound, the "pad area" is carpeted, and all is under the wing of his plane. The opposite side and back of the hangar have the airplane parts and tools. I guess thats where he goes when my mom is tire of having him around the house.