Adding fragrance to soap is soooo expensive. Apparently you need to add about 40ml to 1 litre of soap. I actually have some very good concentrated perfume oils from Kuwait at home that I sell. I was thinking of using about 10 to 20ml of this, but 40ml would be around $40. I've found some other oil fragrances which I don't wear that I will use this time. However, do you have any tips on obtaining fragrances or essential oils that won't cost a fortune to add to my soap? I'm sure I'll become obsessed like everyone else here.