Lists Browser is a simple way of organizing your thoughts into lists. Lists Browser is syncing lists online and will work great on your iPad and iPhone as well in your browser (http://listsbrowser.com).
Fill in your e-mail, password and press the login button. Start by adding your first big thing that you need to do. Then continue by adding sub-lists needs to be done to complete this big task. When you have completed any task, just delete it.