Dealing with Junk

I don't know if I'm asking for tips or just venting.  My husband and I live apart these days but it seems that I keep finding things that are evidence of his disorderly approach to life.  The latest was my discovery in the basement today:  a futon (that I knew was there), the surface of which contained a large area of  mold or mildew (that I hadn't known was there).  The basement mess and junk, none of which is mine, bother me so much that I almost start to hyperventilate when I go down there.  But I've been trying to deal with the "stuff" and so I went down there today with the goal of putting some things into storage bins.  It was very distressing to me to find even more things in our house that are in bad shape because of my husband's neglect.  Blah.