At my email account i have separate folders for groups/ or specific people. If they send me an email i respond and then pop it in their folder out of habit - then every so often i go thru and delete all the drivel (i dont save ones like " yes i agree" or something pointless")

Also have been known to save the odd aim convo, either because it was special, or had some ones addy or something and i couldnt be bothered putting it in my addy book str8 away so theres me - so burn me on a stake - im proud of what i do ;) ha ha