A little slice of UK consumer history: The Argos Book of Dreams, scanned Argos catalogues from 1974 to present. (Via b3ta)
It seems that all (?) of these are also up at the Internet Archive. They’re a little harder to find, and some don’t have previews. A decent search for one uploader’s history is “retromash”, though “argos catalogue” finds more. The Book of Dreams site seems only to have autumn/winter catalogues, while the Archive has the spring/summer ones too.