To boost productivity, try this

Skipped breakfast? Check. Fast-food burger for lunch, at 2 p.m.? Check. No wonder by 3 p.m. you're fading fast - but you still probably have a few hours' work ahead of you.

Fortunately, the solution is painless: try keeping some "good" snack foods close at hand. Here are two possibilities, according to LifeHack: raisins (low in calories and fat, high in good stuff like antioxidants) and almonds, a great brain food. There are 20 foods on the whole list, so check it out. The chaser? Water, of course.