A hutch, nightstand, and dresser that was bought in the early 80s when I was a young'un. Perfect condition and beautiful.
Besides furniture, it would have to be my microwave. That was given as a housewarming gift from my parents when I moved out of their house back in 1995. My microwave has been carted all over the place across country and still works wonderfully. BTW, manufacture date according to the sticker is January 1993. GE FTW!
ETA - Of course I have older stuff around that I use once in awhile but the OP asked about belongings used on a regular basis.