The Franklin Covey system I posted about earlier this week has a special plastic page bookmark. Instead of being a single panel of plastic, it's two-layered. It lets you slip in a paper bookmark on which you list weekly goals. It helps keep the important things in front of your eyes whether you use a daily or weekly diary format.
I find during busy times of my life, I can forget the most important things first. Is anyone using a Franklin Covey bookmark (I believe it's called a Weekly Compass), or a similar idea of your own invention?