If you don't like big crowds, don't come to Disney on a Sunday, long weekend, holiday, or any combination of the above.
In other news, I did at least get to pet a dog today. A guy came to view his photos and had a service/companion dog with him named Cookie and he let me pet it. I felt really bad for this guy, though. His wife (of several years) cheated on him, they got divorced, he went on a business trip (like just this past week or so) and came home to find all the furniture had been moved out, and today was his birthday. But at least he got to spend it at the Happiest Place on Earth with his dog. And they got their picture taken with Pluto.