My beer coasters collection is sort by name of state > city > brewery and also by the coaster’s shape – circle, square, oval or other.
Here you can see the collection storage of my colleague Roman Musilek. I have not my collection in CD plastic boxes as other collectors, due to huge number of coasters in my collection, but I think that it is very good idea and I want to store part of my collection by this way in the future.
Example of not very appropriate way (by myself) of beer coasters storage is putting coasters into office boxes (photo by Martin Valentik).