Want to make the most possible money in sales? Stick with service-related industries or market big-ticket, high-margin items sold to businesses, rather than consumers. And get into the field right out of college, because the chances of landing a six-figure sales job diminish as you age. Companies that sell their expertise to other companies recruit high-GPA students from select universities. They love club leaders and sports-team captains who live to win. This is an eat-what-you-kill environment, where the biggest commissions go to those who bring in the biggest contracts. Find consulting sales jobs on Monster. The consumer packaged goods CPG market, including toys, beverages and products sold through grocery stores and ethnic markets, is growing, says Brian Sekandi, principal search consultant for Gilmore Partners in Toronto.