Do you find that clothes end up on the floor regardless of how hard you try to keep them contained in their proper homes?
Take a close look at your dressing area, no matter how small or how big. Are your clothes all contained within the one area? Do you have to go from one side of the room to the other just to find all the pieces of clothing you need for the day?
The farther apart your clothing pieces are stored, the more likely they are to end up on a horizontal surface (bed, floor etc) while you are either dressing or undressing.
Try and get all your clothing storage in one area together, from now on referred to as your dressing area. It can be anything from 9 square feet (3 metres squared) to a room unto itself. It may be just a designated side of your bedroom – probably the side with the clothes closet. Get all your clothes in there and they are less likely to end up on the floor.