Today DH and I have an errand 1.5 hours away. We are going to make a day of it with DS and have lunch and maybe go to a museum (in DC). We haven't been out of the house for that long since we transitioned DS to WCM. My question is, what do you for milk for a toddler (he's 13 months) when you are away from home? Obviously I can bring some bottles in a cooler, but I'm a little hesitant since our cooler isn't the best at keeping things cold. Or I can nurse, but that might not be convenient. We have some travel toddler formula packets that were freebies. I was thinking of using those. What does everyone else do?