Get a load of this print ad from the Master Photo Finishers of America, 1926.
Text: "Save the day with snap shots. Thanksgiving, the day of the year which brings most families together, is a splendid opportunity to take snap-shots of the entire family, both singly and as a group. Next year may be too late. Have your camera and a few extra film ready."
Scanned and Flickr'd by Alan Mays, whose photo stream is full of wonderful vintage weirdness.