I am flying through São Paulo. My departing flight leaves 6 days after my arrival flight (on purpose), and during this time I'm catching a cheap flight to Buenos Aries. I'm going to take only my backpack to Buenos Aries, so I need somewhere to store a medium-size piece of luggage for 6 days.

Does GRU have this? Anyone know how much? Nothing valuable, but I would like it to be there when I return!

-Chris