how do i get my husband to be organized?

we rent our spare bedrooms and part of the basement to other people and he just doesn't see the point of putting stuff away in a timely manner or putting anything back in its place most of the time. he would rather throw all the junk in a box, put it downstairs and forget about it. Out of sight, out of mind -

These boxes have since accumulated and iiiiiiii am the one cleaning them out now.... there's prob 70 boxes of papers, junk and stuff that doesn't even BELONG in a box (like old takeout food??? ) i've tried talking about it but he just gets defensive....