how do you keep your laptop lunch cool? there's really not any room in there for any ice packs.
i'm fortunate enough to teach at the montessori school my daughter attends, so i've been putting all her cold items in the fridge until her class goes out for lunch. however, i know one of these days i'll eventually forget and would like to find something that will keep it cool.
If you include a drink you could try putting it in the freezer overnight (as in the night before). I did this with my daughter's juice box while she was in elementary school, and I've used the same system with refillable drink bottles. (The drink works as an ice pack then.)