I do something similar to luvsulley. I use Yahoo Mail, which lets me create folders other than my inbox. I have one called "pin trading," and I send everything related to pins in there. So I always have all the correspondance to go back and review. I tried to do the excel thing, but it was taking more time than my actual job, so I started to feel a little irresponsible. When I view the emails that are saved in this folder, I can sort them much the same way an excel file does--I can view them in order of when they were sent, which is helpful if I am trying to find an email that I knew I received during a certain time period. Or, I can sort them by sender--that's helpful if I want to re-examine a trade from a particular person and I need all their emails together so I can review them quickly. I can also sort by subject line, which doesn't help much when trying to find a trade made through Pinpics, since they all have the same headings. But if I know it was something else, like an email to John Rick about a PINquery for his PINcast, I can find it quickly this way, since the subject will stand out from all the pinpics subject lines. I also keep my pinpics rejection emails in here so I can keep track of who I have pestered in the past and hopefully not send a repeat request.