Summer jobs certainly are a key part of growing up. For most teenagers, it’s their first taste of what it’s prefer to work – and if they are lucky, it offers them an opportunity to develop skills that stick to them throughout their careers.

The Network for Teaching Entrepreneurship, which includes teamed up with the Citi Foundation to launch a free of charge youth summer entrepreneurship program called MakeYourJob, rounded up seven established entrepreneurs and asked them to talk about their summer job stories. Now, you want to hear yours. Reveal about your preferred or most remarkable summer job in the comments section below.

From lifeguarding to hauling trash, this is what working summer jobs taught these entrepreneurs:

Daymond John, founder of FUBU clothing and celebrity entrepreneur on ABC’s Shark Tank

The summertime job that was most significant if you ask me was when I was a foot messenger for First Boston. I was delivering packages all around the city and learned the worthiness of responsibility. While I was only a small piece to the puzzle, I was still vital for the firm to use and lots of others’ business depended on me. In addition, it exposed me to a corporate work place that I had never seen before. At age 16, it helped broaden my horizons and introduce me to totally new elements of the world that people right in my own backyard.

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Tracy Sun, Poshmark co-founder and VP of Merchandising

In senior high school I spent my summers as a lifeguard. Works out, come early july job was among my first lessons in entrepreneurship. I realized that within my off hours, rather than resting for my next shift, I possibly could teach private swim lessons to all or any the kids locally. Who doesn’t trust a lifeguard to provide swim lessons? These private lessons paid 5 times a lot more than the lifeguarding gig, so each day I was out there hustling to grow my clientele. The lesson I learned as of this early age is never to be frightened to innovate and to not be frightened to hustle.

Ethan Austin, president and co-founder, Giveforward

My first summer job was in South Central when I was thirteen hauling trash from a construction site for my best friend’s dad. First, I learned to take care of everyone with respect regardless of who they are because they could just educate you on something. 1 day my best friend’s dad, Juan, invited a homeless man to utilize us. We thought we knew what we were doing but apparently we were doing everything incorrectly. The homeless man finished up teaching us how exactly to shovel with proper form and we worked alongside him all of those other day.

Second, don’t leave employment half-finished. 1 day we thought we’d completed our job of hauling trash down a flight of stairs right into a dumpster. Directly after we had already showered, Juan made us return back and carry down nasty toilets to get the job done. Looking back, it had been a good lesson to understand.

Adam Fridman, founder of

My first summer job was at an area gym which opened opportunities for fitness trainers to start out their own business by paying a monthly fee and building their own clientele. It had been my first entrepreneurial venture and I started running numbers: costs, revenue and profits. I was hooked. This job helped to lay the building blocks for my future endeavors by offering real insight in to the entrepreneurial world and showing me the worthiness of hard work. It had been intoxicating.

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Scott Gerber, Founder, Young Entrepreneur Council , Author and Columnist.

At sixteen, I created my very own summer job. When I was a junior in senior high school, I taught myself how exactly to edit videos and photos, reading about the most recent editing software and techniques. Realizing that I wasn’t as experienced as much other video editors in my own town, I started marketing my services for less costly hourly rates in videography companies and asked them to provide me a go. I heard a whole lot of NOs, however in the end got some individuals to agree. The effect: I learned how exactly to sell myself and my skills–as well as how exactly to face rejection and get back up to knock on another door. Years later, my summer job eventually inspired my first successful sizzle reel video production business. Today, the business’s clients include a lot of the world’s largest PR companies, marketing firms and global consumer brands.

Image credit: Noodle Education

John Katzman, founder and CEO of the Princeton Review, 2U, and today, Noodle

My first summer job was writing software for my dad’s company, and it taught me a couple of things. First, as I visited with friends at their jobs, that small companies were more pleasurable. Second, that I loved my father, but could not work for him again; my buddy joined the business, and I went off to grow my very own.

Alexander Ljung, founder of SoundCloud

When I was in school, I worked two summers at a construction site in Sweden assisting with fitting ventilation systems. This job taught me two important life lessons. Firstly, construction industry workers start at 5am! It’s surprising just how much you can accomplish with an early on start to your day. Secondly, any system can continually be improved. Within my limited time onsite, I could inspire the ventilation team to boost the efficiency of installation with some simple changes to how they approached the work. I could remember drawing out my idea for the crew on sheet metal in the construction yard.

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