Before we start the list of things I do every single time I leave the van without the girls (and some other key tips), start here:
Insulate your van. Like really insulate it. You know how you open the door to your car on a hot day after shopping and it’s BAKING in there? You want your van to be the opposite. On a hot day, I can get into my van to escape the heat. It’s drastically cooler in the van after doing the following things than it is outside. It might seem like an exhaustive list but it becomes second nature by week two. Spend five minutes running through these things anytime you leave and have eace of mind that your babies are safe.