Whether in stick or twist form, pretzels are a surprisingly good alternative to chips. One ounce—about a handful—boasts just over 100 calories. To add some metabolism-revving protein, dunk 'em in yogurt.
For a nutty snack, try Ak-mak crackers (made of stone-ground sesame seeds), multigrain Wasa crackers, or low-fat rye mini toasts. Spread on some hummus or light cheese, or eat with a small slice of lean lunch meat.
Sprinkle some grated low-fat cheese, like Jarlesberg light, in between a couple of high-fiber tortillas, then crisp both sides on a cast-iron skillet or indoor grill. The healthiest cheeses have just 3-5 grams of fat per ounce.
Choose 100-calorie packs of 94% fat-free microwave popcorn. Or air-pop your own. Skip the butter. Instead, raid your spice cabinet: Use lime powder for tang, cayenne pepper for heat, or a dash of cinnamon for sweetness.