Mac OS X only: To-do lists are a great way to keep your mind and projects organized, but messing with your program or web-based list's features defeats the purpose. Enter TaskPaper, a seriously simple task manager from the developers of the distraction-free word processor Writeroom. TaskPaper, now in a finished 1.0 version, keeps it simple with text-based lists that can be modified by TextEdit or any other editor. The interface keeps the focus on projects, tasks and checking them off, but tabbed windows and context browsing allow for bigger-picture views. TaskPaper is available as a free trial for Mac OS X 10.4 or later, but a licence will set you back $18.95. If you're looking to get serious with to-do lists, check out Gina's guide to the art of the doable to-do list, or get even more streamlined with paper lists.