Good Idea: DIY - Ice Packs using Liquid Soap. Save money on buying ice packs by taking dish soap, pour it into a ziploc bag, then freeze it. The soap doesn't solidify so it molds to the shape you need, it gets colder and stays colder longer.
This is a great idea - having a "snack bin" in your fridge, filled with healthy foods and other yummy things! And for all those parents who let their kids eat whatever they want for snacks- let them choose from this snack bin :)