Todomoo is a todo manager specially designed to help you manage paid projects without advanced scheduling. The program will organize projects in hierarchical tasks and stores payment details, timers and multiple notes for each task. Portable as well.
(It looks like Windows TaskManager) this is a time tracking tool designed for tired and overworked people. Tasks are organized hierarchically (like folders in the Windows Explorer). Includes statistics. Measure yourself, this is a self improvement tool.