Not much IMO. I've driven 2 cars over the last 21 years and plan on driving the second of them another 2-3 years. Nearly 99% of all my clothes are close to 10 years old, I have 2 pairs of work pants and spend my extra money on my kids or the house instead.
Every day items are literally the bottom of the barrel for me, I rarely spend money on things like pens/pencils or other things like that. I just bring them home from work. I get new phones from work as hand me downs from executives who upgraded, and would otherwise be thrown away. Currently have a 6S+ on that scheme. The most recent thing is our insurance company gave us ~$20,000 to repair our bonus room after rains, instead I took some classes to learn shit and leaned on friends and family and we re-built the entire room (framed), ran electrical, new windows, roof, got it inspected, permitted and upgraded everything for under $5,000 by doing it ourselves. Pocketing the rest and added about $30k in value to our house at the same time.
My dad bought me this book, the millionaire next door when I was like 15 and it made an impression. So quite honestly, almost literally nothing is worth extra for me. I even use sale price toilet paper across my butt-hole, no shame just dollar bills in my accounts. I'm willing to scrap my asshole and use a #2 pencil to provide for my kids and retire early.
