Assuming this excludes “modern-necessities” like an iPhone? I have a hard time picking just one. When I was working in the office regularly I would’ve said my

Assuming this excludes “modern-necessities” like an iPhone? I have a hard time picking just one. When I was working in the office regularly I would’ve said my AirPods Pro or Sony noise cancelling headphones. More recently a new mattress has made a huge difference in my sleep quality and I can’t believe I waited so long.