Mine are stored in individual Mylar sleeves and then stored upright in cardboard boxes in my safety deposit box. I used binders for a few months but my collection grew beyond the capacity of a couple binders, so I abandoned them in favour of some much more space-efficient storage methods.
Logged
BWJM, F.O.N.A.
Life Member of CPMS, RCNA, ONA, ANA, IBNS, WCS.
President, IBNS Ontario Chapter.
Treasurer, Waterloo Coin Society.
Show Chair, Cambridge Coin Show.
Fellow of the Ontario Numismatic Association.