Shag Carpets
Nothing says “I’m still in the 1960s” like a shag carpet. The Shag carpet was a huge blunder; it never looked good and felt strange underfoot. Future generations, I believe, will be delighted to carry on this tradition. Don’t even get me started on keeping it clean. You could instead hire a groomer.
Visors
Another thing that appears to be extremely foolish is this. Purchase a hat to shield your face from the sun. There are plenty of good ones! On the other hand, if you appear to be balding, a visor will always reveal your secret…