I e-mail at times that are convenient to me - often first thing in the morning or later at night when I get back from the studio. I don't expect a response straight away... though I did send a message Saturday morning re: making a temporary and reversible alteration to a dress I'm hopefully wearing for an upcoming competition to pros partner, and I'm freaking out a little that I haven't heard back yet. I need time to find a back-up plan if it's a "no"! I've actually had to have a conversation with pro about appropriate times to text me. The rule I laid down is not after 11pm. He had been developing a nasty habit of texting me very late at night, waking me up. I understand that he just doesn't want to forget, but not cool when I have to get up early for work. (My cell is my home phone, so it's always on in case of emergency.) Now he e-mails, and I answer in the morning. It works.