I’ve been using OneNote for about a year now, and am loving (almost) every minute. There are a few annoying areas (especially the lack, as far as I can tell, of the picture border tools you get in Word/Outlook/…), but I use it every day to collect information and help we work through you tasks.
One of the tools that has been recommended to me by my friends is OneNote Journal. The idea of this is that it can easily create a new day page in OneNote, so that you can keep a daily journal, without having to manually create as page/section/section group with the date. Unfortunately the tool that they gave me only worked on OneNote 2007, and since I use OneNote 2010, this was no use.
So, about six months ago I created my own OneNote Journal tool, this time for OneNote 2010. It won’t work on an previous version of OneNote, but seems to work fine for OneNote 2010.
The tool sits in your Notification Area (aka System Tray), from which there is a menu to change the date format, and also to create an entry. As well as this, you can use the Windows+J to create a new entry for today. If one already exists, then it should automatically bring that page to the foreground. The tool should automatically create the Year, and Month sections for you – to keep it nicely organized.

If you want to download the tool, it is available here:
http://dl.dropbox.com/u/10638488/OneNoteJournal%20v1.2.zip
Note: Before you use this, you will need to create a notebook in OneNote called ‘Journal’.
Disclaimer: Make sure you backup your OneNote journals before you use this tool. Whilst I’ve not had any problems, it is better to be safe. And if something does go wrong, I will be unable to help.

