I've shown this before, but not in a while:




This Pioneer brand photo album is one of the few I found that will accept the certificates -- without crunching them. It's an album designed for 4x6" photos - 2 to a page. In my album, I alternate the certificate with a photo of the lighthouse.

If you're lookin for an album to store your certificates, take a certificate with you to the photo store just to make sure they fit.