Looking for a way to keep staffers alert during meetings? Try replacing the conference room chairs with the Chairless, which debuted at the Milan furniture show this spring. The product, designed by Chilean architect Alejandro Aravena and made by furniture company Vitra, is really a strap that wraps around the wearer's back and knees to relieve tension while sitting on the floor.  The design was inspired by a sitting strap used by the Ayoreo Indians, a nomadic tribe living in the Gran Chaco region between Paraquay and Bolivia, according to Vitra. Made of wear-resistant polyamide, the strap comes in four colors. A portion of the proceeds goes to the Foundation for Indigenous Communities in Paraguay, which supports the Ayoreo Indians. The product is currently sold out, but you can email Vitra to get updates on availability.