This is a great idea for a challenge! I have been able to narrow all of my belongings down to 67 collections of things (being very descriptive of each collection)... is that normal for a woman? lol... jk.
This feels great! To get rid of things that you trip over half the time anyway and donate it to someone or some organization that can use it to help others feels really good.
This is a great thing to do for yourself, but also can end up being very beneficial to those less fortunate.