THE FIX: Crunchy, corny, oily, salty—i.e., totally irresistible—tortilla chips usually start dinner at the local cantina. Halfway into a basket, you’re in for more than 300 calories and, at 200mg, the sodium’s starting to add up before you’ve touched the guac or downed a margarita. We measured chip baskets and found that a quarter-basket represents about a 1-ounce serving—11⁄4 ounces to be precise. It’s a sensible portion containing 169 calories. So visualize a quarter-basket when you sit down, and savor each crunch. Pay attention to the dips as well: A 2-tablespoon serving of salsa has 10 calories, guac comes in at 50 calories, and queso clocks in at 70.