We don't use anything now as I am trying to be as "natural" as possible... oh I did put a loo block in the cistern last week. Not sure if that was counter productive.... my reasons were that me and OH try not to flush every time to save water etc. so often have a few wees before flushing. The colour and smell of the water was bugging me so I put the block in, but I know that is not going to be good either for the water....
we did have a dog, and I used to use loads of air freshners as I was paranoid about the smell. the dog got bathed once a week also!!
OH thinks dogs should smell like dogs...well actually he didn't used to notice the smell, but I have a sensitive nose anyway.
I sometimes spray a quick burst of air freshener if we have visitors or like the other day we had a valuer round as we are re-doing our mortgage.
I keep meaning to get the oil burner out and use that instead as it is more natural.
We use natural cleaners where poss. I do buy bleach and use it only where needed. It killed the mould on the bathroom sealant last week after we tried everything. But it also splashed on my brown towel, so that that yellow specks on it now.
I open windows daily for a while to clear cobwebs and let some fresh air in. Be interesting to see what others do.
I like a house to smell nice but one of my friends has the plug ins everywhere and it makes me feel sick and like I can't breathe properly!!!