We own a condo in Florida that is a vacation rental. In the great room, there is an 18' wall of windows which face south east. Currently, they are covered in Luminette blinds, which are lovely but which are constantly being pulled out of the track by renters. This month, someone managed to break the pull cord that opens and closes the blinds within the sheers. Any idea for an indestructible and easily cleanable window covering that provides privacy and can control light and that still lets us generate a return on our investment property?