Hide journaling or squeeze more photos on a page
I routinely have more pictures than I have space for, or not enough room left for journaling. So what I do is choose one of the photos near the top of the page and turn it into a 'pocket'.
I use adhesive on only the sides and bottom of the photo/matting, use brads on all four corners, and voila, photo or journaling pocket!
Just slip your matted photo or journaling into the pocket, making sure it sticks out enough that you'll notice it's there, attach some ribbon at the top to pull it out, and you're done!