We don't smoke and don't allow it in our home. My DH gets migrains everytime he is around cigarette smoke. We also don't have pets. Our DD is allergic to anything with fur.
Someone mentioned heavy perfume ina previous post, I have to agree that heavy perfume is hard for me, too. It feels like I am choking sometimes when I'm around it. A little perfume is irritating but a lot is choking for me. We all realize that when we are in someone elses home, we have to tolerate these things, but in our own home we do not.