Here are some websites that have a good variety of planning guides.  When I was first learning how to be a successful grant writer I checked out several of these tools and used the best of each to help me stay on target, on track, and on time.

Worksheets for Planning

Grant Writing Worksheet

Grant Writing Workbook

Think about the type of worker you are ~ your learning style.  Plan for your own success.  I am a person who is a visual learner and I do very well with an organized list.  If this is how you feel best, then one of these links may be a good fit for you.  If not, you may need to just put due dates in your calendar, set up voice mail reminders, or hang notes in places where you will see them.  There is no right or wrong way.