Creepy creak

Lim Chu Kang, 72 km. I've been plagued by creaks. Whether loud or soft, they grate and irritate. There are so many parts, some moving (like drivetrain components) and non-moving (like seatpost). First it was the headset (grease it or replace it if worn out), then the front wheel quick release (grit from mud?), then chain ring bolts (loose). And now, the crank arm bolts?

Each time something creaks, it's a wild goose (or is it wild creak) chase. The process of elimination begins, to isolate and fix the trouble spots. While on the move. While enjoying the sights.

I see a blue Conalgo and give chase. I sprint and crest a hill. I'm breathless and so it is the creak, it's gone silent.

Sometimes, a problem goes away, only to return later. Does it make sense to fix one thing at a time, or go for an overhaul? Scheduled maintenance, whether for bicycle or life, might make more sense, to prevent rather than to cure.