It might be worth renting an ozone generator if smelliness is an issue. Basically rather than covering the smell with fabreeze or whatever, the ozone will eliminate the odor. You use it after you've done your cleaning.

Only thing is that you need to let it do its thing for several hours while you aren't home, ozone will irritate your lungs like crazy.

After that, I would maybe upgrade your furnace filters too to help reduce particulates.