I sold all my 45s over the years but I remember once owning some of what I at least considered to be great two-sided hits. I think my favorite, in terms of each side just being a FANTASTIC song, was Brenda Holloway's "Just Look What You've Done" backed by "Starting the Hurt All Over Again." I also thought "Reflections" and "Going Down for the Third Time" was a hot combination. Numerous Vandellas and Marvelettes 45s would also come to mind.