hey Annabell-
I am sort of a Costco fanatic (pre-washed spinach $4.49 for a 2.5 lb bag, 4 bunches of celery $3.49, 3 lb. almonds $9.99...I toast them myself) anyway, you get it. I found Detour whey protein bars which are AWESOME! 24 bars for something around $18. They have 15 grams/protein, 5 grams/ fat, 17 carbs, 2 fiber, 3 sugar, 12 sugar alcohol and no trans fat.
One more find that I will share (also found @ Costco) is the "premium nutrition brand" high protein chocolate shake. It comes in an 11 oz. single serve carton. 1/2 banana, little powdered fiber, crushed ice mixed in the magic bullet... great breakfast or snack. 30 grams'protein, 3 fat, 5 carbs, 3 fiber and 1 sugar.