Consumer photography took a huge leap forward in 1888, when Eastman Kodak debuted the Kodak No. 1 (the followup to the Kodak Box):

“You Press the Button, We Do the Rest.”

This leather-covered wooden box came loaded with 100 exposures, cost $25 (about $650 of today's) and $10 for developing and reloading the exposures.

These examples come from the National Media Museum’s Flickr account.