Every summer, at least once, something dies within the walls. My gosh the stench. At first I never seem to realize right away what it is and tear the house apart looking for the smell. Then it finally comes to me. I've got a bowl of white vinegar out, left it out all night and it seemed better this morning, but as soon as I dumped the vinegar it came back so I put another bowl out. My house smells like some weird twisted kind of barbecue house. Nothing I can do but wait for it to decompose. Thankfully it's not in my bedroom. The smell originates from down the stairs I think, so in the wall or floor down there somewhere.