This is the second year that I have decided to keep track of my life with the help of a Moleskine.  I used to have a PDA and I just decided that it is much easier to just jot things down quickly without having to charge, sync etc.  This is a compact book and you have room to write in events and there is a lined sheet for every week to write down phone numbers, shopping lists, comments, memos. If you have ten meetings a day this might not be for you. I have a few children and we are all involved in something and this has worked for us.  You might wonder if it's worth spending the $. I found his to be really sturdy.  I carried my old one around for 18 months usually at the bottom of my bag and it still looks pretty good.