It does vary outside the standard ALSE kit as listed by my two cohorts above. In my flight suit (when I'm not wearing an immersion suit) I carry my wallet, cell phone, wedge, 3 pens of different colours, pencil, pilot's checklist, serrated one-hand opening knife and a white flashlight. The rest of the stuff I carry in my helmet bag, things like a couple grease pencils, my approach plates and charts, issued Russell hunting knife, protractor, whiz wheel, calculator, and a few other things like those listed by Zoomie.
In the winter we're required to carry winter flying pants, mukluks, arctic mitts, toque and parka/winter flying jacket.
Welcome to the board h3tacco, there's a west coast TACCO around here too.