This is my main sketching equipment I take with me eveywhere. Just toss it in the car and I am ready to sketch at a moments notice. I have also started using [alot] a couple of Pentel Aquabrushes (medium & large), I absolutely love using these and it is so fast and easy to clean up. Of course, I will always use my hair pencils as well. In these next few pictures are my various sketching materials, I just mix and match what I need/want to draw with/on.