I guess I'm a little "old school"?
My grandma had an embroidered wall hanging that said "Make it do; wear it out; use it up; do without".
I live in the 120 year old brick house I grew up in. We keep the temp at 62 in the winter (and I've never been cold; I do dress in layers and always have). We don't have A/C (and honestly don't need it), so that's a contribution.
We have rechargeable battery operated yard stuff; mower, edger, blower. We have a lovely garden and lots of beautiful trees and plants (lots of bees

). We belong to a local farm share and eat 80% local in the growing months; fruits and vegies with lots for the freezer. We buy a local kid's 4H animals which are processed locally and wrapped in freezer paper - this year will be half a hog and 1/4 beef. We have a local chicken processor as well. We don't drink soda or bottled beverages and like many here use a water filter. The only bottled water we have is for emergencies.
We live in a pretty rural area but have a vehicle with great gas mileage - one car for 3 drivers. Kids walk or ride bikes when I can't take them and that works for us. We live in a small town where we can walk or bike almost anywhere.
And we live...frugally? We buy lots of clothes at Clothes Mentor/Plato's closet. We don't overbuy or over-consume based on today's culture (still nowhere compared to the Greatest/WW2 generation). We only get new cell phones when our die (average life 3-5 years) and do the same with electronics in general. Our TV is 8 or 10 years old; one kid just has his school issued laptop and my daughter's is 4 years old. We don't have any gaming systems, and my son just got his first pair of fancy headphones and he's almost 18. Most of the sweaters/many clothes in my closet at 20 years old - good quality stuff that was made to last. Same with boots and coats. Not sure what you call that strategy, but it makes me happy and leaves our budget available for travel and making memories!