There is nothing wrong with not getting rid of anything. I assure you that the second you get rid of something, you'll need it! If it doesn't bother anyone, there is no reason not to keep it. It's your life and If you have a reason...like you can't see the carpet because of the clutter, or you are tripping on it, or it's falling off the shelf etc., then, yes, you probably need to add on to your house. I am the queen of clutter. I enjoy going through my treasures and rereading quilting books a hundred times and enjoy seeing the pictures of quilts. I find it enjoyable and inspiring. It's your life, and if you want to keep it all, you most certainly can!