Hi mel96! It's a good idea to ride the bigger attractions early in the week if you find that the crowds are lower when you first get there. That way, later in the week, when crowds pick up for the holiday weekend, you can relax and enjoy the less-popular rides. I would still take all the great advice you've gotten here though, as far as going to the parks early and taking good advantage of fastpass. Even though crowds will be lighter when you first arrive, I would still expect a pretty decent crowd that whole week. And fastpass saves so much time unless you're there at the very slowest times of year.