Junk collects in all sorts of odd neglected corners. That’s why we change the oil in our cars – even if everything is going well and there are no major incidents, processes just collect dirt and detritus.
You’re no different. You’re a process.
There are apps on your phone sending you reminders you haven’t needed or heeded in months. There are emails in your inbox that have long since outlived any relevance. There are habits you have that don’t help you anymore.
Every few months or so, change your oil. Go somewhere, physically, outside your normal routine and just check in on all those things. Get rid of stuff you don’t need, clean everything, and put it back on the road.