Victorinox knives are good quality, no frill, well priced and durable with minimum care (won't rust if left wet, won't bend or chip easily, can be cleaned with the metal sponge thing ). I had mines for more than 15 years with 5 years using them in commercial kitchen.

Vollrath (it's a commercial kitchen grade brand) baker spatula that is nearly in perfect condition even with 15 years (5 in commercial kitchen) of rough (throwing it in drawers with metal tools, always in the dishwasher, dropped... )

AnySharp knife sharpener (it's basically two pieces of tungsten at an angle)

My cast iron pans. There is no way that thing will break ever, and with a little bit of maintenance it works great!

My carbon steel frying pan.

I haven't had it that long yet, but it just keeps getting better and better.

High quality tools. Makita etc rather than Ryobi.

Also shoes with replaceable soles rather than garbage glued on soles.

I know this is a common one but Darn Tough socks have outlasted adidas/Nike etc by a wide margin for me. Highly highly recommend them (but they are not cheap).

I think great hiking boots like Merrel and Vasque have incredible warranties. Like: just contact us and get it replaced or repaired.

Good bikes also have great lifetimes.

If you see a hand powered rotary whisk at the thrift shop just know it’s going to last forever

My Zojirushi tumbler. I've been using mine for more than six years already and it can still keep scalding hot coffee for hours.

Two appliances I got over 20 years ago that are still going strong:

1. Elna Funstyler sewing machine (that I've made multiple quilts, lots of clothing, and lots of repairs/random things on) (it outlasted my mother-in-law who poopoohed it because she had a Bernina that cost 10x as much)
2. Breville electric kettle that I use every single day. The light and auto-shutoff have both stopped working but it still boils water like a champ

I've started repairing clothing, and wow do natural fibers hold up so much better than synthetics, and they're much easier to repair. So I'm trying to only buy natural fiber clothing (unless it's something like leggings or compression shorts that are much better made from synthetic), which can be really hard to find for things like women's underwear.

I've stopped buying things on Amazon unless I can't get it anywhere else or need it faster than I can get to a physical store, and don't really care about quality. For example I needed a laser measurer in 2 days and didn't think I could make it to Home Depot by then. I used to get leggings with pockets on Amazon because nobody else had them, but now Costco does so I get them there. Amazon (both the company and the products) has gotten so shitty that I really try to avoid it.

I've had much better luck with Etsy, especially for household items and tools/crafting supplies. I just ordered two T-shirts from there and they were really nice quality and priced ok.

Baratza ccoffee grinders are pretty good but the support is amazing they never want a grinder to go to landfill.

I have a commercial vaccuum cleaner, the kind that hotel staff use. Unlike modern plastic vaccums with many small flimsy parts that break after 3 years, it's built super durable and all the parts are replaceable and easily found online. It's called "Sanitaire Heavy Duty Commercial" and cost me about $120. It's UGLY but it cleans carpet very well.

My Big Green Egg

I have been wearing my doc martens for like 4 years I think. Should probably get them resoled but they're the most comfortable shoes ive ever owned.

My shimano reel has lasted 15+ years and cost like $35

I have some old clothes from the 90s that are still good but sadly the same brands dont have the same quality today, havent really found any good clothes brands lately.

My Briggs & Riley Baseline suitcases and briefcase.

Mack Weldon underwear. I have a few pairs I bought in 2018 that are still going strong. They are holding up much better than MeUndies.

Downsides:

• Expensive AF
• Contain some polyester (ie, not completely eco-friendly. I bought a Patagonia pair that's lyocell, and it's nice, but not sure yet if BIFL material)
• Their "Silver" model is the only one with a fly. Do people not wear belts anymore or something?

Watermelons

Hanks Belts. Not a lifetime warranty but does have a 100 year warranty so thats pretty close. Mines been great use it everyday

Webbed belts. My oldest is 30 years old, bought at REI, and if it weren't for the thin design popular in the 90s would be in daily rotation. I have others from the same time period and they're going strong. Some are Bison brand. One's EMS. A few others I don't remember.

Bought an Amish made Clipper reel lawnmower. Built like a tank and cuts smooth. Never needs gas or electricity, just roll it out and go. No noxious fumes, loud motor noise, or dodgy lithium battery. Makes yard work less of a chore.

I've had my moccamaster coffeemaker for about fifteen or twenty years now and it makes coffee just as well as it did when brand new. It's been easy to dismantle for cleaning, and I replaced the carafe once when I broke the handle on the old one (but the old one is still in storage and I occasionally use it when I need to have two pots on the go). It's all pretty simple, well built machinery and I don't foresee anything being able to go wrong it.