I did all those same things but for $1.25 per hour and no time and a half on weekends. (only after 40 hours which never happened) I once had a weekend job unloading a freight car for what was then Esso. Hundreds of cases of oil and a huge number of full 55 gallon drums of oil that had to be removed with a hand crank lift and then rolled up ramps to steal storage racks. The cases of oil were rolled down a roller track where after taking them off the train car had to be placed and stacked in the appropriate part of the warehouse. It paid $4.50 per hour, at the time I felt like I was a Rockerfeller. I was supposed to be working with a few others but none of them showed up so I had to do it myself. If you have never seen how much product that a freight car can hold, I'm here to tell you that it is a LOT.
The more I remanence about my youth the more the mystery of why my back is revolting now becomes more clear.