Lazy, hazy days of summer are a good time to do a cleanout of everything from clothes and furniture you're no longer using, to books, school and office supplies,  electronics, appliances, and even gardening related items. As you know, I've written about where to donate furniture and clothes in the past, but recently, in my clean out craze, I've made new discoveries that will enable you to get rid of stuff and do good at the same time, organizations that specialize in niche categories.