I have a wonderful sewing room and a tip for storing carded buttons. I took those wooden thread racks the sewing stores sell and cut off every other row of pegs, then drilled holes in the top of the rack so that the racks could be hung on the wall. The result is a great place to store your buttons, you can see them and it makes a nice decorative accent in your sewing room as well. BTW, I also hang all of my thread racks on the wall, they take less space, don't get knocked over, you know exactly what you have at a glance, and they look great on the wall. I can send pics if you are interested.
Have fun!