I think without words constantly. It may be part of having a language processing disorder.
The easiest way to move ideas around is to get rid of the words altogether, label them as a thing, and forget the words while using the thing. When you get the things placed correctly, you can pull out the words you need. This thing represents the words, but it is not itself the words. The thing may be a color, a shape, a space, or a line -- it doesn't matter. If you have a clear idea of what the shape represents, it should be clear if it fits with any other shape.
When remembering things, pictures, or 'movies' will work better then words. (Smells are also famous for being remembered, and they are quite difficult to translate into words.) Words would usually be an abstraction, as very little of your sensory input is through words.
Putting thoughts into language is something I do when I have free time. It's not easy... But if a thought stays around for long enough I usually give it a one or two word label, even if it's the wrong word.
I have trouble writing exactly because I don't think only in words. Writing (for me) is not translating my words into what (I hope) are your words, but translating my thoughts into your words. I gather that this is not normal, but it seems that hyperlexic thought processes aren't common either. Most people can't just write what they are thinking without editing; they have words, but still need to shape them to communicate clearly with others.
Addendum -- after six years of noding, I now find writing easy. Darned if I know why, but if I need to think words, I do, and without any trouble (usually). So apparently, practice makes perfect.