I wanted something different in my bathroom to hang my decorator towels on and I had an unused plate holder in the closet. It's very decorative in itself up with the towels draped over it in the bathroom, it's a new look. I didn't use it for plates anymore so it's getting a second use!
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I use a plate holder on my desk to put my iPad in. It keeps it out of the way and I can charge it at the same time. A plate holder also works for organizing papers and holding mail I need to take care of.