Phone calls weren’t cheap. When I was in college (1993-98), we did have direct-dial phones in our dorm rooms, but the long-distance rates were something like 25 cents a minute (and I’m pretty sure that was the night rate). Everyone who called home often got the phone-bill-shock experience, at least once. I certainly did.
I thought it would be a good idea to spend $400 on four more megs of RAM for my computer. Fortunately, I never got around to it.
We had portable music on headphones, but you had to lug the tapes and (later) CDs along with you. Walkmans and Discmans ate batteries.
When you wanted to get online (when I was in college and grad school, 1990s), you had to dial in first. The places that the then-future Mr. Neville and I dialed into never had enough modems, so this could involve waiting upwards of an hour.
Computer disk space was limited. I remember calculating, around 2000, that the astronomy department I worked for had about a terabyte of disk space, in total. Some quick Googling found a one-terabyte external drive on Amazon for less than $100.
Big monitors were rare, expensive, and heavy. A 19" monitor might weigh as much as 50 pounds. Moving computer equipment around was, of course, a much bigger deal than it is now.
TV dinners took 30 minutes to cook in the oven. The only food you could get delivered was pizza.
People tried to do actual cooking, not just reheating food and making popcorn, in microwaves. There were many special sets of dishes for this purpose. The results were generally pretty bad.
Your music and book shopping was limited by what you could find in your local shops. These were (for me, at least, until the 90s) generally like the Waldenbooks in the mall, not huge bookstores with coffee bars. Sometimes you took trips to out-of-the-way used book or tape stores to look for obscure stuff.
You had to pay bills with checks, and envelopes and stamps. That sucked.
Mr. Neville learned observational astronomy using glass plates. They had switched to CCDs by the time I took the class.
Film and picture developing weren’t cheap. I got scolded at least once for wasting film.
Taking videos was an even bigger deal. My family never had a video camera. My grandfather did have an old movie camera, and would sometimes take movies.