Ren Losee

So my 12 year old obsesses over apple juice and likes to help himself. Unfortunately this means that he drinks straight from the bottle. And of course backwashes and we have to throw away nearly full bottles. Of COURSE he always does it in the few seconds I am not looking. Sooooo is there such a thing as juice box type storage you can do yourself so that I can prepour servings for him and he can grab those? (He's autistic so he's particular about the juice type too. So just buying juice boxes isn't always an option. Plus its cheaper in bottles)