The smell of stale cigarette smoke in every public place... like decades of it absorbed into the drywall and just off-gassing a little bit all the time.
Cars were crap - our family cars tended to have critical problems around 160,000 km / 100,000 miles to the point that it was just cheaper to get another (used) car.
Kids were more independent. I remember walking home from school by myself in kindergarten (so age 5-6) in 1982-83.
There was a big shift in terms of religion in schools here (Ontario) in 1986. Before that, we'd have more explicitly Christian stuff in public schools - some teachers would do the Lord's Prayer every morning. After the law changed, that disappeared (thankfully).
We had computers (for my parents' business, mainly). Internet wasn't a thing then, but by the end of the decade, I was on BBSes - there were free newspapers available at places like Radio Shack that had classified ads in ths back where sysops could list their BBSes.
It seemed like technology would get obsolete way more quickly then. Today, my laptop is 6 years old and it does everything that a new computer does, but just a bit slower. In the 80s, a 6-year-old computer was basically a useless boat anchor that was completely incompatible with the current operating systems.