[Adam Sneller]

Another variation on Curt's suggestion. You could do this without any AppleScript at all. Just create a smart folder titled @Inbox that shows all your Inbox messages or any messages with a due date < today. If you work out of this folder you can then use Act-On to create several rules to move your Tickled email to an @Tickler folder and tag it with various due dates.

E.g.,

Tickle 1 day
Tickle 4 days
Tickle 1 week

There was a really good post on this on Hawk Wings a while back...