Age 12-16: Sold Drugs.
Age 16-18: Sold "Fire Services".
Age 18-19: Sold Phone Packages... by phone...
Age 19-20: AutoCAD 14 -> Worked for an achitechture firm from home. Also began selling Flash to tattoo shops.
Age 20-21: Sold Knives door to door.
Age 21-22: School in Proffessional Travel Services.
Age 22-23: Sold Travel. Eventually stopped selling my drawings around this point.
Age 23-26 (present): Sell Retail Electronics (Radio Shack...unghhh...) and studying in IT Support Services to get my ass the Hell out of sales.