Have you thought about online check in? That way, your paperwork is all ready to go - it's just a matter of picking up your package and you're on your way! In my experince, the "regular" check in line always much longer and the online check in line is short and moves much faster. I really don't know what the disadvantage is and why everyone doesn't do it! You should be able to check-in in 15 min, an hour and a half *should* be enough time to make it to the parade.