Doomi – To Do Manager
Doomi is an Adobe AIR based To-Do list manager. It is one of the simplest task schedulers and reminders available. You will love this app because of its sleeker look and easy to use interface. Using Doomi (do me), you can list down all your pending tasks. Just enter them in the text box, hit the enter key and you are done! You can also setup custom time interval for the tasks and therefore it also allows you to get a reminder at a certain time.
The Doomi panel can be moved anywhere on desktop and can be minimized or set to “Always In Front”. The to-do’s can be reorganized via drag and drop. Once checked as completed, the tasks go hidden as old and can be accessed later just by a simple mouse click on the “Show Old” at bottom. Hence, Doomi keeps archives of your old tasks as well.

You may miss some essential features like online synchronization and custom color scheme, which one can expect to be added in the upcoming release.
It is definitely one of the best to-do managers as it is lighter and user friendly. Doomi requires Adobe AIR, so install it first. Install Doomi