Packing a school lunch doesn’t have to be complicated. But the pressure of making a nutritious, easily transportable, tasty, and appealing lunch that will make it through art, history, and science class without getting soggy or smushed can make even the calmest parent crack. If you pack your kid’s lunch, you’ve probably got the routine down to a science. But as the back-to-school season fires up again, it’s worth taking a look at the most common (and often overlooked) ways brown baggers go wrong. Avoid making these common school lunch mistakes, and your lovingly packed lunchbox will never get traded again.