I caught a post where someone mentioned using this shoe rack to store filament (https://a.co/d/cjwQDZ1). Seemed like a good idea but it was kind of a tight squeeze to fit filament and I still have some larger diameter rolls. The post mentioned loose assembly to gain more room but I thought spacers were a good idea. Nothing fancy but it fits well.

The spacer is kind of a simple thing but I thought someone might find the rack useful. This is my first attempt at sharing anything on here so be gentle with me.