I like to buy my protein in bulk. I also get annoyed with making a shake everytime I finish working out. I have lately been pre mixing my shakes and then just storing it in a jug in the fridge. I am sure this is ok but I have noticed some settling at the bottom. I don't want to lose any quality.

Also, what are you thoughts about putting your glutamine or creatine in with your protein. I have tried different routes?