Measure your tubs. I have comic boards and they are 6 3/4"x 11". You could put them in lengthwise like if your sides are about 7'' instead of upright or laying flat. Like an index cards in a box. You could ruler fold and try it that way like index cards. A whole package of a 100 comic book boards take up about an 1 1/2" extra space. So you won't be out much space. I'm getting ready to reorganize my stash and considering different folds. If you go to YouTube or just Google KonMari/organization you will find a lot of folding tips. I already redid my undergarment drawer. Great site to check out.