I say to myself, "Self, what did you learn today?" But seriously, as a freelancer, I'll usually explain some new process or algorithm to my non-technical wife

I say to myself, "Self, what did you learn today?" But seriously, as a freelancer, I'll usually explain some new process or algorithm to my non-technical wife until it makes sense to her. It's a better version of rubber-ducking that helps you not only understand your own code, but also improves your ability to talk to clients. Not quite what you were asking, but I think it's relevant. You can't really share the nitty-gritty of technical info with colleagues until you can also give an overview to a layperson.