Use a shelf when storing narrow items in deep storage spaces. A phone book also works: now you can see everything. | Community Post: 41 Creative DIY Hacks To Improve Your Home
3 1/2" deep shelf on the interior of the closet wall to help organize all the toiletries. Can repaint when repaint closet.
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Pantry Design Ideas for Staying Organized in Style
Planning floor to ceiling 12" deep shelf cabinet with sliding doors. I like the pull out baskets here.
Install rolling shelves in deep storage spaces to make every corner of the closet or cabinet accessible.