The Idea
The ToDrop list is an innovative application for managing your to-do list. It differs from other to-do list applications in keeping your list at a fixed size. What does it mean? Well basically you have a level which corresponds to the size of your to-do list.
If you want to add too many tasks the ToDrop list application will remove one of the old tasks randomly. The idea is that if nothing has happened with this task so far, then apparently it was not so important and it can safely be removed. This way your to-do list will always have the fixed size.
But if the removed task was important after all, you can simply re-add it. But remember that some other task will be removed. This way you will eliminate those less important tasks and at the same time will focus on doing those that actually are important.