What item have you been using on a daily basis for the longest amount of time?
Sometimes I will use something and realize I've owned it forever. It's a nice change in our throwaway reality. I think my personal record is a bicycle multi-tool I got for one of my first bikes, ~25 years ago. Still have it, still use it. When it comes to electronic devices I have a Panasonic mini Hi-Fi from ~2005. Never felt like changing it.
Bought my ridge wallet in 2015 and use it every day. Replaced parts on that sucker a few times bcz the straps wear out and screws come lose and fall out. Only nearly lost it once.
Second iitems are a safety razor handle and brush I got in 2008.
I hate wallets without coin pockets. My current one has the one that kind of 'clamps' and doesn't have a button. It's nice and thin but still way bigger than the Ridge. If one day I don't carry coins any more I will switch