Same here - TP holder on the inside of the vanity door.
As for the paper towel holder, I mounted that inside the pass-through cabinet on the kitchen slide, so I can get them from outside through the compartment door, rather than going inside every time. Also keep the grill lighter, happy hour supplies, etc in that cabinet that you access from the outside. But, I think they eliminated that feature on the 2015's along with the drawers to make romm for the big pullout shelf.
2005 F-150 FX4
2013 Rockwood Roo 23 IKSS