When motivation for working on your current code base fades

Michael Feathers writes about how to stay motivated when working with the Lame Duck Code Base; a code base nobody really want to touch because it's not going to be used for some reason.

If nobody else care about the code base, find some way to make it matter to you! If it is a messy legacy system, use it as way to gain experience handeling its intricacies. Find a way to learn something while working on the project.

Anyways; Michael Feathers says it better. I really like the points he is making.