Making a decision what to keep and what not to keep may be hard at times.  Use the “in and out inventory rule” to help you with that.  When something new comes in and you have to make room for it, something old goes out.  If there is an item you have not looked at in months (not bills or financial statements), worn in the last couple of  years, or has been broken for a year or more, either recycle it, give it to a charity, or throw it away.