For me: (a) I keep a Spark List in Simplenote that serves as a running list of random ideas, and (b) I mostly jot stuff down in [my Baron Fig notebook](https://shawnblanc.net/2014/11/my-first-baron-fig/) (which has become [the driving engine](https://shawnblanc.net/2015/06/hybrid/) behind my day-to-day productivity).
The takeaway however, is not *what* you do to capture your ideas…
Here’s what you need to know about ideation:
1. Don’t be afraid to write down every whopper of a bad idea you have.
2. Have a system plus some sort of movement in your day-to-day life that will help you synthesize your ideas, test them, and then take action on the ones that matter.
Anyway. So long as we’re on the subject of ideas, I wrote more about ideation last summer in what has turned out to be [one of my favorite articles](https://shawnblanc.net/2015/06/you-have-ideas/).