These green file folders have been sitting around forever. Using a heavy duty chopping paper trimmer I cut them down to 11 3/4" x 7 1/8" (except the tab height) I was able to cut 2 mini folders from each full size folder. I measured to find the centre (except the tab) & aligned 1/4" more each side to accommodate 1/2" wide cartridges. Then I enlisted my Martha Stewart scoring board & a nail-file to score since I couldn't find the scoring tool (my house ate it). I put a sticky note on the board to remind me where to score repeatedly. As always, scoring makes folding easier.
Here is my results. On the right it shows 7 cricut boxes in a Recollections brand photo storage box. Of course different brand photo boxes do not have the same dimensions, I checked. My mini-file measurements may not work for everyone, so always measure before cutting.