Remember to draw...
All the work on here still starts out as a hand sketched idea before going into 3D - especially details and connections, so I know what the goal is. I traditionally used pen and paper for this, but the last year or so I've done it all on my iPad - using the Paper app and a Wacom stylus. It took a while to get comforatable, but now I don't even think about it. My scanner is collecting serious dust.