The debate is endless – should the toilet paper go “over the top” or “come from underneath”? While preferred TP placement is personal, studies show that the “over” way can help to prevent dirty hands from touching more of the toilet paper than necessary, plus it affords less of an opportunity for the toilet tissue to graze the wall (a toilet tissue holder with a cover can help to keep toilet paper clean and make tearing the tissue easier). Skip the entire debate with a vertical toilet paper roll holder or split the difference with a double hanging toilet paper holder – this allows you to place one roll over and the other under. As to where exactly to place the bathroom toilet paper holder (right, left, high or low), much is determined by your existing floor plan and available mounting surfaces and floor space. A wall-mount or hanging toilet paper holder must be within easy reach of the commode.