You're forgetting that: Women couldn't vote and where mostly housewives, Blacks where treated like crap and the law (Jim Crow laws) supported it, Cars where completely different, Cigarette companies where allowed to advertise freely, TV was for the rich, Some people had ice boxes, etc. If you really look at it almost everything has changed. If you look outside of America you'll see a much bigger change.
I'm not forgetting any of that.

I'm 35...I've seen plenty of things change in my lifetime already. When I was growing up nobody had cell phones and almost nobody had ever heard of this "internet" thing. Those two things right there have changed the world a lot...certainly a lot more than cigarette company advertising. I'm not sure what decade you're referring to, but by the mid '60s televisions were pretty common in homes.
Anyway, I'm saying that a lot of details have changed over the past 100 years, sure, but as far as day-to-day life is concerned things haven't changed all that much in the past 100 years compared to the previous 100. There hasn't been a really drastic change in lifestyle in most first-world countries since the 1800's when the full effects of the industrial revolution began sweeping across the world. Again, though, that all depends on what you consider "drastic." I know people that considered getting a DVR a drastic change.

I wonder if we're living the beginning of some big changes right now. Maybe someday soon they'll refer to this time period as the "Information Revolution."