Hi, I could use some tips for being out in a hot park (not only Disney, any amusement park) all day with a 6 month old. I have never done this so I really could use some major advice. My infant is also formula fed and the particular brand we use does not come in little travel packs nor does it come in ready to feed 8 oz bottles. I know I could use the little formula dispenser, but can powdered formula be kept in a stroller on such a hot day and stay ok? The package says avoid extreme temperatures for the powder. So I really could use some tips on how to best manage formula feeding while out at the parks, also tips for keeping bottles clean, etc in the room. thank you!