Thought people would find this blog useful.
Since December, Rails has undergone a fairly significant internal
refactoring in quite a number of areas. Yehuda K. has honed a
process for diving into a new area of the codebase and emerging some
time later with a much improved area that does basically the same
thing.
Check out his easy, 6-step approach to refactoring Rails:
http://bit.ly/116BST