Bagging Back in the Day
In high school I earned walking about money bagging groceries. Not only did I bag them, I carted the bags to the customer's car, loaded them in the trunk, and politely awaited my tip, the only payment I received for this service.
To this day I'd rather bag my own groceries. Which is good, because there is rarely a bagger anymore, and the cashier is trying to do both jobs. They always appreciate it.
Edit: Get the compressor.