The famous Co-op slogan and jingle originated in the 1960s (these ads are from 1968) and continued into the 1970s. Around the mid-70s, the slogan was changed to "Your Caring Sharing Co-op" and a new jingle arrived which wasn't half as much fun!
"It's All At The Co-op Now!", which was sometimes tweaked to "It's All At Your Co-op Now!", are both etched on my brain.
My head is simply full of old advertising jingles from the 1960s, 70s and 80s!