Curtains and Blinds

 I can determine the genetic makeup of a wide variety of cancers, I can write the greatest set of equations, I can hybridize the most beautiful daylilies but damned if I can remove blinds! Each blind has a different mechanism to place it on the wall, and the mechanism is hidden in some weird place. Underneath, at the end, by a screw, a flip lever, etc. The designers must have an abject hatred for the poor folks trying to hang them or clean them. Design principles are no longer enshrined in any fashion, it is a free range set of viscous designed frustrating the consumer with delight!