Put a limitation on your to-do list, and be forced to prioritise and focus. Five helps you do this - you can only have five outstanding tasks. With Five you will stop taking on too many tasks, many of which you wouldn’t have time to complete anyway.
Similar to Timestripe which I love, five task for the really chaotic, brain foggy incomprehensible days is really good as it helps you feel accomplished and clear on getting just five things done feels great