The easiest is to get a cotton wool ball or a piece of kitchen roll and damp it under the tap. Add a few drops of your chosen oil and pop it on one of the radiators. Don’t be too heavy handed as they are very strong. You can do this in several rooms of the house so that there is a gentle change of atmosphere between the hallway and the living room, for example. If you have a diffuser (either electric or candle) add a few drops of your chosen blend to the water bowl. Make sure the cable is out of the reach of children or pets.

Add a few drops to a ready made base product or shower gel.