While I don't immediately associate 'best practices' with 'agile methodology' and 'microservices' (although I can see how recent articles on HN might strengthen that association), I have noticed that the busier I am with programming, and the more 'best practices' and 'optimization' and 'DRY' are on my mind, the more it seems to seep into the rest of my life. I start timing my bicycle commute and optimizing my route to avoid traffic lights or catch green waves, I try to do the dishes at optimal speed, I make sure that every 'trip' to a place in the house is as efficient as possible (take something one way, another thing on the way back, etc.).
I'm not sure it's healthy, but at least it's... odd/funny.