This is a subject that interests me, because religions all have ways of responding to misdeeds (sin, karma, forgiveness, etc). It seems to be quite universal among religions. Atheists, on the other hand, are unlikely to find much comfort in the majority of these ideas, so I'm curious as to how you (yes, you, as an individual) deal with guilt and how (if at all) you use past misdeeds to overcome the less desirable aspects of your nature.
Do you take a formal approach to it, or a philosophical one, for example, or simply a practical one?
Do you take a formal approach to it, or a philosophical one, for example, or simply a practical one?