Tired of being cramped in your airplane seat with little leg room?  Ryanair has given new meaning to stretching your legs in the air.  The Irish airline is exploring the idea of transporting passengers without seats.  Passengers would instead stand against posts while secured by seatbelt harnesses.  Ryanair believes that the ’standing seats’ would maximize airplane capacity and provide a cheaper option for passengers.  The airline hopes to officially introduce the ’standing seat’ in the winter of 2011.