Today's thrifty living tip is to use a paste of baking soda to get stains out of plastic containers. It will also get out some funky smells. I use cold water to make a thick paste and let it soak overnight and rinse it out in cool water. You may need to do a second soaking but it usually gets out the stain on the first go rounds. Using hot water sets in the stains just like it will on your clothes. I wash it in warm water if the stain is out or mostly out.