Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Any.DO - The #1 task management app used by over 11 million people globally, Any.do is your free mobile and online task manager for Android, iPhone, Web and more.
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Microsoft To-Do - Task management tool
LightShot - The fastest way to take a customizable screenshot.