Susan Beth over at D*I*Y planner has a really great implementation of the Hispter PDA for writers.

What I always carried was notebooks, for the recording of inspirations and bits of overheard dialog and such, but mostly to turn stray chunks of time into writing time. Over the years, many types of notebooks were tried and found unsatisfactory. Elegant ones intimidated me, spiral bound notes got smushed and snagged on things, glued pads fell apart, composition notebooks didn't lie flat... I was picky, yes?

A few years back I started using index cards and I've never looked back. Well, you guys don't need to sing their praises, I'll just note that if you use them for an ongoing WIP like I do, the FIRST thing you write on the card MUST be the page number!

As a writer, one of the best ways to combat writer's block is to keep good track of your ideas. Sure there are many tools online you can use, and a simple journal (I use a specific idea journal) can help, but nothing works like a bunch of index cards. I know I've taken to carrying them with me. They're good for almost anything.

A writer's "Hipster" [D*I*Y Planner via 43 Folders]