An awesome new iPhone app was released today that is a mashup of the age-old to-do list and an RPG. You put in real-world tasks and designate how important they are, when they're due, what type of skill the task requires (strength, stamina, intelligence, etc.), if it's a one-off thing or a recurring task.
Then as you complete the items on the real-world tasks your character gains experience points and levels up and gets loot and stuff. The artwork is great and I've been extremely impressed in the limited time I've spent with it.
To-do lists have never been very useful for me because I make them and then forget them entirely. Giving the to-do list a videogame spin and appealing to my innate desire to level-up my characters might be just the kick in the ass I need. Anyway, check it out:
http://lifehacker.com/5616472/epicwin-turns-your-to+do-list-into-a-role+playing-game-available-now