Whatever idea you have, start drafting it on WordPress straightaway. Give your drafting a title, and save it, but do not publish it. Remember, it will sit there forever until you decide to further develop your writing. And you can go back to it and add more, change it in all its parts, or embellish it to make it ready for publication. But so long as you a draft there, you will not forget that lovely hunch you got in the first place.

And the added perk is that, when you are finally ready to write your post or page, you will have already written half of your piece, hence saving yourself time. It's amazing, sometimes, how much easier it is to put together 1500 words when you don't think about it, than when you sit down telling yourself you must find 1500 words to complete your post!!