What Do I need to know ahead of time??? I've got Passports for us and Birth certs for kids. All the updated details on vaccinations for the dog already in the truck. Vet told us to make sure we have a bag from the dog food just in case they want to see the ingredients. Anything else we need to worry about in regards to propane, food we can pack in a cooler or the fridge?? Will they make us pop the camper up?? Like I said we are first timers ever crossing into the US. Thanks for any help! We will be crossing at Sarnia/ Port huron.