Ads which have stood the test of time

Every adman dreams of an advertising slogan or visual which would be remembered for generations-and preferably simple. Here is one about Maytag products (one of many from the company with the same theme):

Then there was this public service ad of the US government (1987) which had become a catch-phrase by the late 80s, with its bare minimum dialogue:

It unconsciously inspires PJs even today:

A later version of the 1987 ad from 1997 is more elaborate but probably not so well-known: