I have replaced my mid-tech 8.5" by 5.5" personal organizer (tabbed binder) with the MSI Wind. It's a fabulous netbook (minilaptop), and I just have to open it up, type my ideas in my next action buckets in OpenOffice.org Writer (an open source and free equivalent of MS Word).
I might use software like Kalendra to keep track of appointments, etc. I could just create a text file in OO.o Writer, but I'd have to type in the days and times myself, so I'm looking for a better offline calendar program or maybe a script that would generate a daily calendar in OO.o Writer.
I even got MS Streets and Trips 2009 on the MSI Wind, so I just plug in the GPS receiver, and it tells me where I am without needing Internet connection. So useful for getting around the city, getting things done, knowing where I am and not losing any thoughts.