I love this thread! I just noticed my husband answered it earlier. So I'll do the same. Here they are, pretty much in order:

Paper route
Babysitter
Lifeguard at municipal swimming pool
Waitress at Mexican restaurant
Swimming instructor and lifeguard trainer at municipal swimming pool
Hostess/cashier at restaurant
Waitress and fill-in bartender at a pub
Emergency medical technician at a state hospital
Paramedic for a fire department
Paid section editor's position on college newspaper
Store clerk at a glasses/sunglasses store
Feature reporter/stringer for small local papers
High school English and journalism teacher
News and features reporter for large metropolitan paper
Marketing-advertising copywriter for a large technology corporation
Senior executive speechwriter for large technology corporation
Medical student (I'm unpaid but am receiving an allowance from money we saved when I was working full-time)

Being a mother is a huge job, albeit an unpaid one, and I've done that for the last 21 years, too, counting pregnancy.