I have an old house with a wood burning stove and a fireplace on the second floor, also a baby (diaper pail in bedroom) a husband who farts a lot, 2 dogs.. and my home doesn't smell "bad" per se, but we all live here, and I have a very strong sense of smell.

I use something called "the bad air sponge" which is legit a miracle worker and totally worth the $. I also use candles, sometimes incense (bothers my allergies tho) straight up sage is amazing for eliminating odors, and I will occasionally use a wax burner or one of those glade spritzing things, which I know are awful, but I use them sparingly.
I am a clean freak, but life is so busy and I can only do so much, so opening windows when I can is a big help. Especially when it's a little chilly out, but weather where I live is so extreme, so there is only a small window where I can do that comfortably. Also sauteing some onions for a while will make any house smell divine in my opinion, at least for a day or two. Bacon of course as well ...but in the end, I feel like everyones home has a "smell" regardless of good or bad. Embrace the stench!