Weldy

Wieldy is a program that allows you to keep a to-do list and store your tasks and contacts. The specific reason I like this program is because it allows you to schedule a due date for a task and it will show you how much days you have left before the due date. It lets you sort task into categories so you can keep everything organized.The software is very easy and simple to use.
There is also a portable version that you can find here: http://www.wieldy.de/download.htm

Publisher Website: http://www.wieldy.de/
Download Link: http://www.wieldy.de/setup_wieldy.exe
Price: Free