The question of what qualifies as a sandwich has long been debated, but that’s not what we’re talking about today. We figure we’re all, more or less, on the same page about what a sandwich is, but maybe not as much about how they can save us during our busiest times. So this week is all about how sandwiches — from the lunchbox variety to dinner sammies — can help make our transition to back-to-school way easier.