Have fun with baby food jar crafts and attack that stash of jars sitting in your «to do something with» pile! (make-baby-stuff.com)
You can also freeze homemade baby food in baby food jars or containers. (thetoddle.com)
Still, not having a week's worth of baby food jars in your luggage could totally alleviate the possibility of paying for overweight luggage, as well as strain on your back! (havebabywilltravel.com)