Accounting for time spent on different tasks (when there are many and hectic) and doing the actual accounting (instead of your accountant) are both tedious tasks. Did them both today and I can say only this: If you cannot do one, you are for sure bad at another.

This leads me to the tools like Toshl and Toggl. As always, it is paramount to actually have the tools mobile, with you. This way, you can create a habit (quite the same as with myFitnessPal). You will know your finances with this approach – always. And, much more importantly, you will know how you spent your time. After all, time is finite.