Remember when we used to check alignment with a dial indicator and a feeler gauge every time? I got in a hurry and skipped it. The finish pass took off way too much material on one side. Now I'm back to doing it the slow way, and it saves me heartache. Makes you miss how careful we used to be.
I always left them out for quick use. Now I put them back in the case right away.
Doing quick stretches often keeps the ache away.