Allen, who goes by the Flickr name Roadsidepictures, has quite a collection of photographs of vintage product packaging from most of the 20th century. Looking through these will surprise you (with items before your time) and bring back memories (with items you recall vividly). Surely I'm not the only one who remembers back when Tang came in metal cans! Link -via Metafilter
(Image credit: Flickr user Roadsidepictures)