Last year, I started a second job at a coffee shop and it was heaven — all the coffee I could dream of, right at my fingertips! The problem was, along with a ready supply of caffeine, there were tempting, sugary treats emitting their siren call all day long, too. Juggling two jobs wasn't that difficult, but it wreaked havoc on my diet. Running from one place to another with so much unhealthy food nearby was a surefire recipe for disaster. When you're busy and tired, it's just easier to …