If she did we'd have been treated to a tutorial in the professional style of the iced coffeeNo you just aren't a woman. Cleaning like that (but onto a clean tissue) is normally only done in retail to clean inbetween clients. If she has weeks worth of build up on her brushes she should be cleaning them properly. I think she's lying too. I don't believe for a minute she cleans them every 1 to 2 weeks.