Now that I think about it I only switched three times (so far). I went from Pre-Physical Therapy to Biochemistry to Premedicine to Accounting. The second and third are actually so similar that I don't know why I went through the trouble of switching at all. I think I'm going to stick with...
I'm in college and my problem is that I like too many subjects. If it was practical to be undeclared for four years then I probably would have done that instead of switching majors four times. My least favorite subjects are definitely history and english, but even those I like.