I have my old black and white TV from when I was a young child. The sound is in and out on it, I haven’t used it in years, but I keep it.
Jewelry from when I was very young. I also inherited jewelry more recently, but I won’t count that.
I have several t-shirts that are 25 plus years old. Let’s see, one is from college, so that’s 30 years.
Photos from when I was a baby, and elementary school photos. I have various photos from many years of K-12.
A flatware set from my college years is still my everyday flatware in my house.
Several pieces of furniture from when I first got married 25 years ago, and items bought from my registry like dishes and some pots and pans, and more than one kitchen appliance.