I have been:-

a paid baby-sitter
a dog-sitter
a part-time nanny
a sales assistant of children's vests and pants in Littlewoods
a canteen assistant for Littlewoods staff canteen
a short-order chef in a cafe
a dish washer
a temporary auxiliary nurse
a cleaner

I actually enjoyed all of these, but the nursing was the best and most interesting. (I was only 19 at the time)