it was a very strange experience, everyone suddenly wanted a piece of you. product is good, but process, we learn the hard way, it the real tugging star. there is no single thing that will take you from years of struggle to success. certainly you want to milk the cash cow as much as you can. the glass spout is easily removed for cleaning. fortunately, this is not a big issue with most of my students. "this shows that this power is something that they want and must get in any way possible." identify back-up mechanical systems available for times when your equipment needs repaired. 