How to you keep track of your daily tasks?

Hi there PH-community! I would love to know how you keep track on your daily tasks and how to prioritise them? Are you a pen and papir kind of person with an infinite task list or the Todoist kind of person with a maximum of 3-5 priorities a day? Disclaimer: We are building a combined to-do-list, blocker and motivator and would love to know which tools we need to account for / integrate with first.