My parents both made crafts and went to craft shows to sell their wares. I asked if I could sell stuff too and they were overjoyed. I made little fluffy things out of Fun Fur: little snake with googly eyes that rose up when you petted it and tufts glued to the end of pencils to look like those little troll dolls. Each one was priced at a dollar and my mom subsidized my venture by buying all the materials. I had to sell a hundred of them to buy my truck. I was an ADD kid so I couldn't even count that high without getting distracted.
Time rolled on and slowly over the course of a dozen or so craft sales my pile of cash grew and grew until I had enough. Just for me my parents made the three hour long (round trip)journey into the city. I was so excited. I had worked so hard and now I was getting what I wanted.
Life rarely works out as planned unfortunately. The truck also required one of those fancy batteries that wasn't included. The kind that cost another $40. My parents didn't come to my rescue. They just told me I'd have to work harder to afford the new cost. On the way back I was in tears, my heart broken. My mother then told me that I shouldn't be sad, and to remember the smiles of the people I sold my stuff to. Money was just a way to say thank you, but the real reward was in making other people happy.
Reminded me of middle school where this one admin kept track of how many times you didn't have your school ID around your neck. The admin was my science teacher and saved everything in an Access db on a computer everyone used in his class. It was very enticing to just ... the db.
I'm now 21 and run a successful web-based start up based in Calgary. Curve Dental, check me out at curvedental.com or http://www.curvedental.com/docs/resources/april07_matt_calgaryinc-2.pdf
When I was older I couldn't afford to buy a computer. So I built one my self. A friend who was EE made the plans and I also follow his directoves. It never went into a venture because the video output was not good and stable enough, but some worked well. It was a nice experience though.
Later got an Oric atmos. I wrote a disassembler and disassembled the whole OS, disk controler and basic interpreter. I then wrote a symbolic assembler that could call functions of the OS I digged out. This all done with peek&poke. Then came the Mac+, the PC, Linux, etc.
Continued it until 6th grade, when the school principal shut it down.
My first "adult" business was a web design consultancy I started freshman year of college.
My first "startup" was a company that ran a network of drop-shipping sites hosted on their own virtual domains with unique templates, etc. We never really got it fully off the ground before founder issues blew it apart.
Currently have tagsrc.com running, though the first widget is still buggy. Trying to find time around work to do more.
I developed much of the site in ASP and partnered with a designer to do the logo design(I sucked at designing back then). Once high school started and I discovered freelancing I lost focus and never really went live.
The site was called HelpersSeekers.com. This was in 2001.