The Scrap Box in Ann Arbor, Michigan is a great place to donate old collections of baby food jars, buttons, craft supplies, coffee cans, corks and other household "scraps". They also take National Geographic Magazines, which I know can be difficult for folks to part with.
The Scrap Box is a non-profit organization that provides craft materials for teachers as well as individual families. What a great way to get rid of clutter and keep it out of landfills!