At the end of each week I rename the current week category. In addition, I go through a full weekly planning process. This consists of reviewing my accomplishments of the past week, checking on items scheduled for the upcoming week, making sure that I have tasks scheduled that reflect my goals and values, check all the Waiting For To Do items to make sure nothing has been forgotten, and finally review project lists (also kept as Memos) and make sure that the next action associated with each of my active projects has been scheduled with a To Do item.

Conclusion
Staying organized doesn't have to be complicated, and you don't have to spend lots of money on software or spend lots of time learning how to use it. I've described a simple system for using a Palm handheld that really relies on just one piece of purchased software, Memo Leaf, which costs only $5.00. It has replaced more complex software, but it has resulted in a system that's very easy to use and sophisticated in capability.