What is 30 lbs?

I figure I've got 30 lbs to lose. What is 30 lbs. you ask?

(Note: We all played around with the scale today - that's why I know these #'s - other than my own of course)

- Half of my 6 year old's weight
- The difference between my 10 year old's and my 6 year old's weight
- Heavy