Use a polymorphic multi task chronometer.Sablures Exulium is a task chronometer. Style and color can be define. Number of task can be hold is infinite (depend to the power of your processor. Task have attribute. You can define the number and the list of attribute. You can change attribute for a began task.there is report function, when there is a negative or a positive variation. You can export in xml, csv and later pdf. Can be use as task list memory (with work'in memories).