If you are in a business that depends on the amount of time you spend on a given job then it is a really good idea to track the time you are spending. If you don’t, you risk not benefitting from that valuable time spent on the jobs concerned. My preferred method at the moment is to use a simple Excel spreadsheet that tracks time spent and gives me an indication of the value of that time. I have columns for the job reference, date, description of the activity and the time spent. It didn’t take long to set the spreadsheet up and I use it daily. For a couple other ideas, together with pros and cons of each, take a look at this post on Web Worker Daily.