Why Wait Until Jan. 1? Start This Supersimple 6-Step Fat-Loss Plan Today

Liquid calories quickly add up — it's easy to slurp down 300 or more in minutes, not to mention all the sugar! Ditch the soda, even diet, since the artificial sweeteners will stimulate insulin levels to rise, and low levels of insulin will help you lose weight.

Also avoid all-fruit smoothies and juices; you're better off eating the actual fruit because the fiber and chewing will fill you up and make you feel more satiated. Skip the specialty coffees (with syrup and whipped cream) and sports drinks as well. Water, sparkling water, black coffee, and unsweetened tea are great calorie-free options.