I've posted this several times before, so I apologize to frequent visitors, but here's how my set collection looks at the present time.
In the top shelf on the left is the binder that holds the sets from the 1940's I'm building. The two other thin blue ones are 1950 Bowman and 1951 Topps Red and Blue backs. Each year in contained in their respective binders. The card on the outside is an extra HOF or superstar card from that year and is in addition to the set.