I decided to use a pretty three-ring binder (from Target), page sleeves and address labels. Simple. Easy. As you can see, I have a page sleeve for each week to stuff ephemera into. And in case you are wondering, no, all the ephemera in that basket did not fit into this 1" binder. I ended up purchasing a big, clunky, 3" binder. I'll go back to using this one once I get caught up.
How do you organize ephemera?