you don't need more protein in your protein shake, lol. You could make the shake with milk, that would add a little protein and it would be a different, slower absorbing protein than the whey.
there are tons of shake posts and recipes - look in fitbuddy (bottom of the screen) try the key words "protein shake recipes" and see what comes up.
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Permanence, perseverance and persistence in spite of all obstacles, discouragements, and impossibilities: It is this, that in all things distinguishes the strong soul from the weak.
Thomas Carlyle