Yeah, I've read this thread from front to here a few times. Most I do. But, getting myself into the "mood" to retire, I am working at these things with more gusto!

Often it's little things -- measure the laundry liquid, don't just pour.

Use it all (whatever it is) so you don't waste. This is so easy to accomplish with some foods -- dump all into a bag in freezer, then make soup with it...etc. Cats & chickens get scraps, and all that. Make the "little" things count more.
I haven't bought soap or shampoo in ages, or paper towels, napkins, etc. I do buy cans of sanitizer wipes now & then. They are fast & cheap with a coupon, on sale. Love those things to wipe up, off, around. LOL
Currently I am making myself work within my "retirement" money for all except paying for any outside bills...right now, a tractor payment, extra gas to go to work, etc. Things that won't be part of my eventual retirement. I'm weaning myself.

Buying "great" deal buys for equipment I will need later, while I'm working. I suspect I will abandon one of my 2 part time jobs, keep one for a while -- until I'm comfortable emotionally.

After all these years, it's hard to not have a "place to go" and a "paycheck".

Sure I will love it when it happens.