YoLink's system is not expensive but has helped greatly. A temp sensor on top of the stove ensures I don't forget to turn the over or burner off. A door senso

YoLink's system is not expensive but has helped greatly. A temp sensor on top of the stove ensures I don't forget to turn the over or burner off. A door sensor on the fridge has caught me a few times when a bottle falls and makes it not shut right. (Note: I really don't like that they're a closed platform that depends on the cloud, and I very much hope Matter/CHIP gives us a similarly cheap and reliable alternative. I also did have one incident where a missed trigger sent me home by Uber thinking I had left the front door open). Tile trackers are even cheaper and have been a massive improvement to my life. Until it mysteriously disappeared, a Rite in the Rain pressurized pen was pretty awesome for $12. Most pens dry up if only used once in a few months and then you have to sift through 5 dead ones every time you need one, which is often in a hurry. 3D printers can be had for less than $100 used. Bluetooth headphones are definitely amazing, I'd never want to go back to wired. Logitech Bluetooth mice with 24 month battery life are amazing. A Kindle or Kobo reader is definitely worth it. DRM is problematic but many books don't use it, and the convenience factor is a big deal. The LARQ water bottle is about that price and always stays fresh with UV light. The Ultramasx true HEPA mask is impressive. I went 2 years riding busses in the peak of the pandemic without getting sick. For any item you take places, the proper protective case is probably worth having. I usually buy thr case at the same time as I buy anything new. More often though, extra objects seem to be less than helpful. I don't do kitchen gadgets, I don't do DIY tech infrastructure at home, I generally don't use simple functional items if a phone can replace it, I don't use corded tools, I don't do wired if I can do wireless. I've gotten as much milage from eliminating simple functional items and replacing them with an app as I have from buying them.