As an expediter, you can’t always control how long you’ll sit between loads. But one thing you can control is what you do with that time you’re having to sit. So, how can you get the most out of your downtime to increase your value—and your income? Try building your “skill stack.” What’s a Skill Stack?Scott Adams, the Dilbert cartoonist, coined the term “skill stack” in his bestselling book, “How to Fail at Almost Everything and Still Win Big: Kind of the ...