I've been to Toronto before for Hot Docs, but this will be my first trip there for "Toronto" - the shorthand for the Toronto International Film Festival (I've never heard anyone outside the staff call it "TIFF.") Larry Richman, on the other hand, seems to have been a number of times, and offers this three-part guide of "tips for real people," ranging from line etiquette to specific advice about particular venues.
Check it out. Part one, part two, and part three.