Like many moms my age, I have a minivan, and I love her. Though a look at the trash piling up on flat surfaces, crusty French fries in crevices, and spilled sticky-something in the back right cup holder might give you a different impression. I feel slightly guilty about the mess she’s in, and I’ve started giving myself half-hearted mental reminders about her biannual cleaning. But truthfully, the mess is part of the reason I love my van. There are French fries everywhere because it’s the perfect place for meals on the go. Straw wrappers float around like confetti from the delicious iced chais and sweet teas I’ve consumed while…