And then there's the direct approach
If I say to someone, or if they say to me, "Next time I see you, we'll ______." there's always a doubt that it will actually happen. Time passes, situations change. What was applicable at the time may no longer apply. So, I don't like to wait until the next time. I'm more likely to throw the book in the mail, or buy and send a copy they can keep (especially if it's Getting Things Done ). It's extra effort, but it gets it out of your system sooner. And there's really no downside to being that proactive.
constant forward pressure