There’s a reason Thermos has been around since 1904: The century-old technology is still reliable. These popular vacuum-seal containers do their job keeping cool things cool and warm things warm, which opens up a whole new set of lunchbox possibilities. You can do everything from cold overnight oats and hot oatmeal topped with dried fruit for breakfast, to soups, chili or macaroni and cheese for lunch.
Where to buy: $20, walmart.ca
