I have a lot of different names. Some of them probably shouldn't be repeated here! :)
My dad used to call me Little Bits. He actually still does sometimes, although now it's typically just Bits. He calls Sarah Beth Little Bits, and it makes me smile every time.
My best friend when I was younger used to call me 'Chelle. She still does, although we don't talk much anymore. But my best friend from high school, she still calls me that.
My college roommate starting calling me Mich. That one pretty much stuck. She and her husband still call me that; not sure the last time either one of them called me Michelle. That's why I started signing everything Mich. (Pronounced Meesh).
Then of course there's Mommy, Mom, Shelly. I'm sure there are quite a few others out there, but Mommy will ALWAYS be my favorite!