[merinid]

Workflowy.com

[frans]

I tried everything on this post, some for several months. Only one survived: Workflowy!

Its nested, collapse/expand structure seems to match best with my view of the world.

[thanthese]

I've never had any piece of software become so indispensable so quickly as workflowy did. It's hugely flexible, dead-simple to use, and easy to use on all my devices.

[maxkir]

Interesting, have you tried Checkvist (I'm the dev)?

[captn3m0]

They recently launched their native iOS app, which has offline support, which makes it even more awesome.

[jackbauer]

+1