How do I make my house smell nice?

[SuperBunny]

Without baking. And preferably without a plug-in type thing.

It always has a 'used' smell which I don't like. I think it's because the carpets absorb the cooking odours but even having had them cleaned it is still there. It's not a revolting smell but isn't fresh and nice like other places I have lived.

I have the windows open as much as I can and have tried bicarb but I am stuck now.

I do this thing where you get an orange and push cloves in to it all around (so it is 'studded' with them iyswim) then put in on a radiator. It'll gradually dry out but as it does it releases a lovely orangey clovey smell. They last for a fair while too!

I usually do this round christmas as it has that fruity spicy type smell!

A few years ago I lived in a rented flat with a very odd smell. I just resorted to burning incense and oils all the time.

Geranium oil smells lovely. I dab it on the stairs carpet half way up (in the corner so you cant see a mark) and in the hall so you get a waft as you go by. This way it doesnt linger where you sit, but nice as you come in the house.

I have a large, carpeted living room. Where can I buy a job lot of bicarb?

supermarkets in chinatown usually sell massive bags of bicarb for super cheap if you live in a city with a chinatown?