I always liked the North African kind of flowing rectangle (you can use a kitchen towel, they often do) with a double square (made out of wood or something) holding one end on your head. No wrapping, so probably technically not a turban, but certainly easy and after all, the Moors are the North Africans anyway. The idea is: Make a square that will fit onto your head snugly but not tightly. I think they use bamboo or other reedy wood, 2 bars per side, tied together with black (they often use electrical tape). Place towel on head so that front edge is just above eyebrows and the length goes down your back, place square on head to anchor. Fini.