I prefer to work at a rate of least 15 dollars an hour, but this is always negotiable. For commissions with a fixed price, I ask for partial payment upfront. I work as long as I need to get the job done! Preferred contact is by email at firstname.lastname@example.org, which I check and reply to often. Phone calls, skype, and google hangouts are also suitable (some clients have liked to use the screensharing functions of the latter two applications in addition to voice chat so they can see my work in progress!).