How about
:
Porta-walls.
Grandpa's two holer WAS the john.
You had to have a set of bongos in your back window to be cool, and the "package" shelf had to be white roll and pleat or fuzzy material.
Bermuda bells were in.
Chevrolets were referred to as stovebolts.
NASCAR actually ran STOCK cars, and the championship car was a flathead six with dual carbs. BTW Dan, the folding seat/bed would have been a Nash, not a Hudson Hornet.
An E-ticket was what you used to get on the best rides at Disneyland, not an admission pass you buy online.
The really old can't remember any of the neat stuff we've all listed.