I love my laptop lunch box systems for my children. Even though school lunches are coming to an end there are still the day trips to the beach or a park where a laptop lunch is useful.
Another useful resource can be found midway in this blog. You will find a printable lunch "item" sheet for Packing A Healthy Lunch. I love how it is laid out in columns which allows me to plan my grocery shopping list and get ideas for items I may have forgotten about when packing a lunch.
To your health .... Naturally!