Oh yeah, and of course if you want to try something other than shakes and smoothies, you can bake with it. Here are a few other things I do with protein powder:
High Protein Chocolate Carob Pumpkin Pudding Scroll down for the recipe. I use cocoa powder instead of carob, and if you've got plain protein powder instead of chocolate, just add extra cocoa. It's nice drizzled with maple syrup or agave.
Fudge Brownie Protein Bars I can confirm that these are delicious. I have to put some almond milk into the batter though, as I found the direct recipe to be a little dry.
Peanut Butter Protein Bars Haven't made these yet but I plan to soon! I'll have to use almond butter as I'm allergic to peanut.
So there's some ideas! The lady in GNC also said you can add scoops of plain flavour protein powder to casseroles and soups and things too. Experiment!