I'm going to find these milk products listed -- milkman and the mexican one -- ..sounds like they'll make my oatmeal and granola all the more tastier.  

BUT, Intrepid_camper...for coffee, for 3 years I've brought in a bag of those little creamers you get from McDonalds, for example.  I put the bag on the top of the food pack, so it doesn't get crushed.  They are a WONDERFUL, lightweight delicacy for those who love cream in their coffee.  My buddies gave me a hard time initially, but now they love this, and carefully manage our creamer supply so it lasts the entire trip!  Try it!  You'll like it!  

prouboy