I want to say I like My Name is Earl because it's sweet and funny, but I just like Jaime Pressly.
I tried to prove the Pythagorean Theorem a few days ago, but got distracted. I had the scratch paper lying on my desk and noticed it again today. It hit me. You can draw four triangles congruent to the original triangle in the square of the hypotenuse, along with another square in the middle with sides length (b-a) with b and a being the legs of the original triangle. You add the triangles' area (4*.5*a*b) to the area of the middle square, and blam: a^2 + b^2.
Awesome. I was up late last night graphing things using spherical coordinates. They're wicked fun.