When I started working seasonal at Ups 3 years ago, and they were vary gracious to keep me on I'v learned. Being that UPS was one of my first jobs I was new to a lot. I wasn't quite sure how rough my job was going to be first starting out, but with the help of UPS they put you through their comprehensive training program, and they will teach you everything you need to know. It will all became second nature and the manual labor will became nothing. It's all a very easy job after a little while.
Decent pay.(over time)
Sick days / personal days.
Manual labor can get tiresome.
Work conditions are dirty depending on your area.