We've progressed a great deal since those early days, and food and materials for survival are much easier to come by, but we all still harbor a little voice in our heads that wants us to hold on to stuff "because we might need it."
Always a good idea to revisit Apartment Therapy's cure and philosophy of decluttering. Our problem is that we fill an out box and then since we've forgotten where it is we start another leading to a clutter of out boxes which we need to declutter.