Awhile back I purchased a larger size vinyl board, from the House of Staunton, I believe. The size of the squares are 3 inches (or 2.5 inches, I can't remember) instead of the more common 2.25 inch squares on most vinyl boards.
I saved the large, heavy duty mailing tube that the board was mailed to me in, and so I now use that tube to store a few extra vinyl boards I have.
Three of my vinyl boards I don't "store" at all...they are on my displayed on my coffee tables, with pieces on them, all the time!
Vinyl Chess Board Storage

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For any of you that use vinyl chessboards, what do you use to store them? My first thought would be a cheap cardboard mailer tube with end caps, or a plastic document tube, but I thought I'd see what you guys might be using.