These Stuffit bags are so useful - I keep at least one in my handbag at all times, and tend to get complimented at the supermarket checkout for it! As the website says, they're:
~ Child safe
~ Machine washable
~ Australian owned and designed
~ Made from 100% polyester
What: Stuffit Swing Bag (this one is Leopard, but there are other colours/designs)
Where: The Greenstore (385 Brunswick Street, Fitzroy)
>> I've seen these for sale all over the place, and the price will vary depending on the type/size of Stuffit bag you're buying. Also available online at Biome.