It seems like the tried and true ballpoint pen should be pretty dialed in by now. You know, reliable. How often have you been dong the crazy scribbles thing trying to wake up a gunked up pen? I just did it yesterday and quickly tossed that pen in the trash. Enough.
Time for the Tombow AirPress Ballpoint Pen ($9) which uses a pressurized technology for almost anywhere writing. The Tobow AirPress can write in wet, dusty, and upside down applications. It is also fairly priced and looks pretty good. Get some here.