Tips For Writing Action

I've just been writing a fight sequence in the book I'm working on. Over ten years of writing action scenes in Jimmy Coates thrillers, I've noticed a couple of tools I rely on to help me, and a couple of huge WATCH-OUT rules that I don't think any writer should ever, ever break. Those biggies are at the bottom. First, the tools:

Be clear
If you're writing any kind of fight or chase, get hold of little action figures or toys so you can carefully and slowly choreograph the sequence on your desk....