[Ambar]

I agree with jonwalthour. When I have called someone, I check that action off and create a new one in a Waiting For context. I'm used to putting WF at the beginning of these to distinguish them, so they look something like this:

WF call back from Dr. Dietrich, called 24 May 2008 re: gelding Ace, left msg

That way I can quickly run down my lists of WF items and decide who needs prodding and who doesn't. :-)