I have my material ruler folded and stacked on shelves in a closet. I removed the folding doors from the closet and hung dark curtains in front of it to keep the sun off of it.
I think you have to do whatever works for you. Some like bins. Some like cabinets. Some like shelves. Some like xerox boxes (which I also have a lot of material in) but for me the ruler fold and closet method works the best for me at this time in my life. Things might change.