Lesson Planning - getting organized

I have mentioned online planbooks before on my tech blog, and for the past two years I have really committed to PlanbookEdu.  At the end of the year they were running a special for a 6 month premium subscription (normally I just use the free subscription), but I figured I'd give it a try.  It was very helpful this past year as I was able to roll over my plans from last year to this year (of course only one course that I am teaching is the same as last year's but at least it's a little time saved).  In addition, I was able to share my planbook with my co-teacher so that she could stay up to date on what I was planning.

I have science classes with labs on various days as well as rotating period for project based learning.  I am able to make it so that planbook automatically grays out the days that I don't have the lab and labels the ones that I did.
Here is a screen shot of what my planbook looks like.  Only two of my four classes are shown because it was just too big to fit on one screen.

What do you use for planning? Do you have any good planning methods you can share?