We have a dog, a toddler, teenage girl and ponies. The ponies arent in the house but yard boots are. My house smells nice mostly.
I always open the windows for most of the day when its warm. When it's cooler I open them at least an hour a day upstairs and maybe 20 minutes to vlow through downstairs.
I mop all through downstairs twice a week with flash and zoflora in the water.
I clean the carpets upstairs and the sofa about every 6 weeks with carpet shampoo and zoflora.
I don't have washing drying indoors apart from in the tumble dryer as although it does smell nice it causes damp.
Bathroom and downstairs loo cleaned with flash bathroom spray which smells gorgeous. Bleach down each loo every day. Splash of zoflora in the bin when I change it.
I use candles in the evening. Usually whatever I like the smell of in TK Maxx.
We went on holiday a few weeks ago and when we came home the house smelt vaguely of zoflora and wasn't stuffy.
Decide what you want it to smell of and use whichever product suits you best. I like candles personally as I can change it when I stop noticing it. Get rid of any unpleasant smells which are usually bacterial I think so disinfect and bleach where necessary and keep your house aired. Then use your scented products to create that smell.