You know what?... does it really matter? So what if someone finds your stuff, are they really going to care much or even figure out what it is for? I mean, for example, I have dressed up for Halloween for the last 10 years and I have boxes of stuff...it this going to be a issue if it should be discovered? If you are on death's door or you even passed away, then why not let everyone discover your cache? In fact, is it not an advantage to the world's future to let people know about your life? ...my guess, the real issue you might be concerned about is that you don't have the opportunity to explain anything at that point!