I got my first job thanks to the age old technique called "Nepotism"
At age 17 (summer before Senior year), my uncle got me a "real" job. Before the "real" first job, I had done odd jobs for people in the neighborhood for cash (lawnmowing, leaf raking, car washing, etc - all the thing kids do to get $$), but nothing that required a time clock or boss.
Anyway, for my first "real" job, my Uncle helped me get a job in Quality Control at the Best Buy Distribution Center warehouse in MN. My job was to go from truck to truck and do spot checks to ensure that the merchandise was being loaded onto the correct truck and that the stock-pickers hadn't delivered the goods to the wrong truck.
Yep, they paid me like $7 an hour to make sure that none of Roseville's TVs ended up on Edina's truck. If I found something that didn't belong, I noted it, alerted the truck loader/packer and he pulled it off so it went to the right truck.
I had to check each truck 3 times (usually 10-15 trucks loaded per day), with a minimum of 20 packages checked per truck. Then, I'd have to tally up the total number of packages checked, calculate the error rate, and submit the day's report to my boss.
So, it was pretty easy. It involved a LOT of BSing with Union guys and a LOT of walking from truck zone to loading zone, so I was on my feet all day. BUT, compared to the guys who had to actually LOAD the truck, my job was much cushier.
Occasionally, for big sales, they'd have me helping to pick stock and fill orders, but even then those were small orders, like CDs, Casettes, or Videos. No TVs or big stuff.
I worked two summers, and then holidays (Christmas/Spring break) and weekends during the school year. Pretty cushy, eh? Especially compared to my brother who put in 2.5 years at the Arby's Drive-Thru during his high school days. 15years later and he STILL can't eat there.