Not really technology, but I'm too cheap to buy AC. My place is small and by the time I settle in at night the sun has set below the trees and a good fan will cool it down. I put the fan in one window, open another in the other end of the house and the breeze flows right through... the same way that we cooled the greenhouses.
For years I've used an old all steel window fan which my employer was throwing out; I had to lube the motor up to get it to work properly, and it's a little noisy when I shut it down yet it's served me well for 10 years or more.
I'm the same way, don't especially like AC. Don't even use it in the car. Of course, I live in a part of the country where you don't really need it anyway.

I'll go ya one (actually 2) better on the fans...I have 2 window box fans...one I bought in 1969 when I got my first apartment, the other was one I scavenged from the curb on trash day. Lube the motor bearings once a year and they both still work just fine. One's in my shop, the other is used as an exhaust fan in a spare room in the house...turn it on in the evening once things cool down, house stays cool most of the next day.
Once upon a time, we had a 3 day power outage and I bought a 8000 watt generator after it was over. It happened in the winter due to an ice storm. We used my Coleman camp stove to cook on, LED lanterns for light, a propane infrared heater for heat. I got the new generator and it sat for 5 years till the next storm. When I went to use it, the carb was messed up, took it to a repair shop and they found a spring missing from inside the carb (factory screw up) that took him just about 10 minutes and $20 to fix and it ran like a champ. We ran that for 6 days day and night. Now it is back in its storage hole, waiting for a new disaster to happen.
That's the trouble with a generator, it just sits most of the time. I bought a 4000W one about 10 years ago after a power outage (mainly to keep the freezer & refrigerator cold...it was in the summer). Don't think I've used it since, other than semi-annual exercise runs. Always make sure I shut off the fuel valve and let it run dry after each use.
Don't really need it for winter...we can get along just fine for a couple days without electricity if need be...propane kitchen stove and HW heater, gravity fed well, woodstove and lantens.
That is the one great technology that I like, debit cards and electronic banking. I write about 2 checks a year, one to pay my property taxes and one to get my sprinkler checkvalve certified. Both dont take debit cards. I always hated carrying around a checkbook and writing out checks. I got the standard box of checks when I opened my current bank account in 1990 and I just last year had to order more.
I don't like debit cards, more than likely I'll forget to enter a purchase in Quicken and I'll lose track of balance. Way easier not to when writing a check. Even checks are to pay bills, not used at stores...either cash or CC there. My bank has a "senior free" checking acct with no fees, and one free order of checks per year.
I also am seeing (native) elderberry and sumac in places where it never was before, in forest openings we've created.
Now
there's an invasive plant we have. It's a relatively low-bush sumac with white blossoms, not the usual red. When we bought the place it was over-run with it. After much bush hogging and mowing I keep it mostly contained, but it's an ongoing battle.