I have my stickers in a file system, as well by holidays and various other themes. I did though invest at a convention in a Clip It system. It is an "in your face" out in the open kind of storage idea that holds any size stickers, embellishments, etc. Generically speaking you hang things by a clip to a large ring and turn it to see everything. I was not too sure about it at first, and I walked by the booth about 10 times. Now that I am using it, the benefit has been that I only categorized holidays, birthdays and dogs (a particular theme I was working on). Now when I sit to do Christmas, ALL my stickers/embellishments are there for me to look at instead of hunting in every drawer around my room. Also, if I am doing an "I Love You" page, I scan though my V-Day section and grab some hearts or great quotes.
It is a bit bulky, but I have used it well. If only there was the perfect way to store stickers, etc.