Maybe you have the same affliction I have. A few years ago when our daughters were young and involved in school activities and sports, I decided that I needed a better way to keep track of who to pick up, when to pick them up, and where they were or needed to be. The paper notes got to be too much and many of their activities were scheduled for months in advance. This was before I had a cell phone so I decided to get a Personal Data Assistant or PDA. When my daughters asked what I needed that for I told them, "Because my brain is full. Every time I put something in, something else has to go out so I need an expanded memory."