You could dial a phone number using only the last 5 digits.
Pop and beer cans had a pull tab that completely detached from the non-aluminum can.
Gas was about .40c/gal. People were up in arms over the price when it approached $1.00. In the mid to late 70's there was a gas "shortage" and people would get in hour + long line waiting to fill up.
There were no remote controls. The TV had a 13 position rotary selector switch. At least there were way fewer commercials.
No satellites, smartphones, texting, fax machines, tablets, computers, digital anything. Writing and mailing letters was a thing. People actually knew how to talk on the phone and would converse in person.