We take these everywhere from picnics at the park, the beach, airplanes, trains, car, friends houses. Check them out..... http://www.laptoplunches.com/
Our experience with this company has been fantastic! They have great customer service and guarantee their products.
Save $$ idea ..... I didn't buy their Bento Carrier, as I read on a blog that the soft lunchboxes (Princess, Batman, etc.) at Target fit the Bento boxes perfectly.
Truly an investment worth making for health and the environment!!