Yeah, several notebooks would cause a problem. I have ONE notebook that I use 95% of the time. It's a handy size, pocketable. I just bring it with. Writing notes down on your phone takes second place to a paper notebook. Just having the phone around can be problematic sometime. Especially if you're with other people. 

Signal312

How did you internalise the habit of carrying this notebook with you everywhere?

I do that too, but I kinda have several workbooks at several places. Which can get a bit disorganised at times haha

cryotosensei

Design

Fess up, where do you all get your best ideas? 

Doing something mindless - dishes, weeding - while NOT listening to podcasts. And always have a little paper notebook handy, to write down ideas.

(I've temporarily stopped listening to podcasts. I love them, but it was seriously becoming a little bit of an addiction. I'll try podcasts again, maybe while I'm traveling.)