Organizing vintage postage

I recently jumped on the “use cute vintage postage” bandwagon. I’m enjoying the look and it’s not too hard for me to figure how to add up to $0.49…but organizing them is not going so easily! I have my current/forever stamps organized in a three ringed binder in baseball card like holders, etc (you can see photos here: http://scribblingsarah.blogspot.com/2013/01/organizing-postal-stamps.html). It’s great as I can easily see what I have and pick what matches, but I’m not sure if old lick ones can be safely pushed in and out of them… So, I thought I’d see if anyone on here uses them and had found a successful way to store them.