Frugal

Using things outside of their intended purposes. I live in a gated community with my folks. Our house borders an apartment complex community, the border is a fence followed by a hedge in our backyard. We have several fruit trees in our backyard including avocados and mangoes. During fruiting season, avocados will drop and fall over the fence. My mom uses a pvc pipe with a kitchen knife taped to one end to use as a spear to retrieve avocados over the fence on the other community's side. 5+ kitchen knives have been broken by doing this. I recently bought a 30ft fruit picker to collect fruit before they drop, so hopefully that helps to alleviate the problem.

DOCAZOO DocaPole 7-30 Foot (30 ft Reach) Fruit Picker and Telescopic Extension Pole for Apples, Avocados, Oranges, and Other Fruit Trees https://a.co/d/hZUlhHK

Flights with connections. Flying has become so tedious, frustrating, stressful, that saving money by spending yet more hours dealing with it, just isn’t worth it. I’d sooner cancel the trip

The people who tell you that you are poor because you get coffee at a coffee shop every day. At best you would save ~$2000/year if you bought $5 cup everyday. $2000 saved would not be a significant amount of money to make in an investment either. Personal happiness isn't worth trying to cut out things you like.

The cheapest option is always cheapest for a reason. Incrementally so the amount cheaper it is than the average.

It's more of a generalized rule but:

Assume that your own time has value.

A lot of "frugal" tips operate off the assumption that you can spend your own time and it doesn't cost anything. But your time is valuable. Time spent trying to save a few bucks should be considered working time; ask yourself how much you would get paid by your job for the same amount of time. Maybe you enjoy doing whatever the thing is, so it can be considered recreation, but if it's some difficult or mind numbing slog, then that doesn't necessarily mean that you actually saved yourself anything, because you weren't getting paid to do work, and you could have been doing something more rewarding instead.

This is a little different from the others on this list, but a lot of DIY stuff for parties/weddings. The money you're saving is negated by time lost, not to mention unless you have unlimited time/ no job and are able to thrift everything, the components for DIY aren't that inexpensive. For my sister's wedding, we did everything ourselves. Everything from literally painting the venue, collecting/creating every table scape, my dad built the stage and dance floor, all the way through setting up the hundreds of little desserts on the day of. It was all wonderful and lovely. And took a massive amount of time and labor across several families. When you factor in the value of people's time, it was not less expensive than mine. We rented everything and it was so nice not to stress about dressing every corner of the room or decorating the bar, or making sure we didn't run out of ice on the day of. We still chose super frugal options because the wedding industry is a scam, but we just paid for everything.

Sometimes it's worth it just to pay people to do stuff. Value your time and mental health more than money.

Searching for the cheapest gas station. Too much time and gas.

I always thought couponing looked obnoxious.

The cheapest food is always a massive rip off. It doesn't matter if you're willing to settle for something that doesn't taste as good. The cheapest food has been stripped down to such nothingness that you need to eat 3x more to stay alive. It doesn't work for the same reason you can't just drink water and feel full.