Writing takes planning, and thinking, and you plan and think by writing.
I journal at the start and end of each writing day. I journal to think, and to plan. For me, and for many writers, journaling is a necessary step between your brain, and your writing. Writers who journal seem to be more productive than those who don’t.
You not only capture your ideas in your journals ( I have several journals), you also work them out — this preparation makes it much more likely that your ideas will actually appear on the Web, or in print — or as contract work for a client.
Why prepare? You do it because writing is HARD (I’d say impossible) if you don’t prepare.
via www.sywon.info
Do procrastinate instead of writing? Perhaps you're not warming up. Prepare, then write.