OneThingToday looks like a great task manager to help you focus on what's important today. Once you've used the calendar view to input your tasks, switch to the "Today" view to get a single box (optionally transparent) which floats on top of your workspace, constantly reminding you of what you're working on.
In many ways, this is a more organised version of using stickies to help you focus, letting you plan ahead.
OneThingToday is designed to make managing your tasks as simple as possible, without micromanaging your time.
OneThingToday is designed for people who have multiple simultaneous projects, and can enhance their productivity by focusing on one project each day.
OneThingToday is also designed for people who only have time to tackle one task each day, and who find themselves overwhelmed by all their pending tasks in their limited time.
- Ricky Buchanan