When I was freelancing, I would start by executing on the project and typing. I'd stop in-between to think and read docs, but usually I'd begin and end the day

When I was freelancing, I would start by executing on the project and typing. I'd stop in-between to think and read docs, but usually I'd begin and end the day by typing. That's why billing by tracking typing worked for me. Even if I had long meetings one day, I could look at that day's chart and see total hours worked since the start/end times are shown.