“Nobody does it like Sara Lee.” That’s what I thought they were saying in the slogan “Everybody doesn’t like something, but nobody doesn’t like Sara Lee.” It wasn’t that long ago that I found out that what I heard wasn’t what they were saying.
“Nobody does it like Sara Lee” makes sense, but not when included in the full slogan. “Everybody doesn’t like something, but nobody does it like Sara Lee.”
I wonder if the advertising company for Sara Lee thought they were ground breakers by using a double negative. Maybe they were.
Postaweek2011
It's a long story . . . 
i believe the advertisers knew EXACTLY what they were saying. that was back in the day when subjects and verbs were meant to agree, the nominative case was clear as was the objective case, and so many other niceties of language that have been forgotten and trampled upon today. i was originally put off by steve jobs “think different” campaign until i realized he had stated it with elegant and perfect correctness.