She works mostly with her fingers and the results are always amazing. In a video I watched once she said she doesn't mind other people using brushes, but she doesn't like to work with brushes and sponges because she finds them dirty and a waste of product and time.
Every time I go to a make up counter looking for foundation I ask the make up artists there what's the best way to apply it. Sometimes they say fingers, sometimes they say brushes. Once I went to an YSL counter interested in the Forever Youth Liberator Foundation and as always asked about the best way to put it on. The make up artist said I should definitely use a brush, never fingers - that could transfer bacteria to my face.
Most make up artists I know of use brushes, Bobbi Brown, Pat McGrath, Rae Morris and even Lisa Eldridge, who has assisted Mary Greenwell. It's a very personal choice, and what works for one person might not work for another. Of course brushes can be dirty as well as fingers if you don't clean them properly.
I understand using less brushes can be more practical and save time and money, as good brushes might be very expensive, but personally, I prefer brushes. I think they are more precise and deliver better results than fingers. If I'm in a hurry, I will use my fingers to apply foundation, concealer, cream blusher and cream eye shadow, leaving only finishing powder to be applied with a brush, but if I can I will take my time and pamper myself with a lot of beautiful and fluffy brushes.
