I have the book "Working Effectively with Legacy Code"[0], and it's pretty much just "Put things under test, then change them.". Still a useful read, though, i

I have the book "Working Effectively with Legacy Code"[0], and it's pretty much just "Put things under test, then change them.". Still a useful read, though, if you find yourself working in that sort of thing often (I do). [0]: http://www.amazon.com/Working-Effectively-Legacy-Michael-Feathers/dp/0131177052/ref=sr_1_1?ie=UTF8&qid=1286321306&sr=8-1 http://www.amazon.com/Working-Effectively-Legacy-Michael-Fea...