Comment by tptacek

This is a great post, an unusually great one on this subject, and I only have this to add: don't charge hourly. You can break your finances down by the hour if you want, but your customer should interface with you on a day-rate basis, or, if you're ambitious, a week-rate.

I'm not sure I've ever talked to someone who moved from hourly to daily and regretted doing so.