Who else loves paper?! 😁 Yep, another of my obsessions. You’ll discover I have many. 😂 My 12 x 12 paper is stored vertical and my 8.5 x 11 is stored horizontal. This is only for space reasons. I keep my solid color scrap paper in an expandable file and my pattern paper scraps in a filing cabinet. Again, only for space reasons. Do you keep paper scraps? I actually use them more than full sheets. I have an area for my 12 x 12 paper pads and store them vertical as well. I keep those scraps clipped inside their corresponding pad. My 6 x 6 paper pads are kept in bins with handles and their scraps are kept in envelopes attached to the back of the corresponding pad.