Skip the lunch box. Buy five matching containers.

For five identical meals, skip the lunchbox and buy a set of matching stackable rectangular containers. You’re not packing one lunch, you’re packing a system.

Rectangular beats round every time. A square or rectangle stacks into a tight brick in your fridge and in your bag, so you’re not hauling wasted air. Rounds roll around and waste space. You want the same container five times over, not a sampler pack of different shapes.

Glass if you microwave. Pyrex Snapware and Glasslock are the workhorses — they reheat evenly, don’t stain spaghetti red, and the lids actually lock. The downside is weight; five stacked glass containers are heavy, so if you’re carrying them on a commute, Sistema or Rubbermaid TakeAlongs are the light plastic option and cost less. Just don’t microwave plastic lids.

As for the bag: the containers are the hard part, the bag is easy. Measure your stack and find a soft-sided cooler or a “meal prep lunch bag” that fits the base dimensions (most standard prep containers run around 8" x 6", and most decent lunch bags are built for them). Don’t buy a hard-shell executive lunchbox — they’re overpriced and rarely fit more than one container.

Buy the set of five, stack them, and you’re done. Future You gets lunch, and the fridge actually looks calm instead of chaotic.