Concentrate on what you were just thinking about. Then work your way backwards - what were you doing before that? Run over the details in your mind again, remembering keywords or phrases or scenes in your mind. Then open your eyes, grab your DJ and scribble down anything you can remember. Even if it's only a few words or sentences.

Don't stress about recall, it'll only make it worse. Just be very aware that you dream every night and you're bound to remember somthing at some point.

oh and welcome to the forum