I've got to deodorize a basement quickly because of a hurried real estate situation. The problem is: We have 2 cats. We have 2 litter boxes in the basement and one of the cats (don't know which) doesn't use the box very often and chooses the corners of the basement instead. <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/greensad.gif" style="border:0px solid;" title="greensad"> This is a big problem, yes. But the bigger problem is - even if I go downstairs everyday to clean the litter boxes and the corners of the room (I feel like a zoo keeper....), the smell is still there. No one will buy our house with this smell. What can I do to get rid of it? Vinegar? Bleach? Please help!!