As far as snacks go, where would they draw the line? If baby food is OK, where do you stop? 2? 3? Fruit snacks would be OK as long as they are Gerber's brand? Could you bring in Nemo fruit snacks, but no Sponge Bob? I don't think a total black-out would ever work.
I do not bring in foods, but I do like to lug in my own beverages. I'm sorry, but Coca-cola tastes like battery acid. If they would sell Dr. Pepper, (or even Coke's rip-off Mr. Pibb) I might change my policy. Nahhh...I'd rather pay $1.50 for a liter of Dasani than $2.75 for 20 oz.