Someone needs to invent a full body sized cooler bag fat suit that can be worn under appropriate sized clothing that holds liquid and keeps it insulated and cool and has a hideable straw. Just fill that sucker with your beer of choice.

In my younger years I would occasionally smuggle in my small Jaguars branded plastic flask, but I've just turned to consuming very little of anything inside the stadium. In fact, probably 9 times out of 10 I don't spend a dime inside. I'll have 2 or 3 beers during the tailgate and then my wife will bring in snacks and a couple of bottled waters for us in her tote. I'm just not paying stadium prices.

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