Milk Wars

Since we don't have a doctor's note for Drew to have milk substitued with Juice at school, I have to provide the substitute.  I have been on a search for the single serve soy milks.  I found some, and it was $3.89 for a 3 pack!!!  NO WAY!  I can't afford this!  I need to find it in bulk somewhere, or I will be providing juice everyday.  I really don't want him to have juice every day though either, he will be a poopin machine.