How you can keep a journal with ease

I've commenced my latest experiment - journalling.  I had heard about the five-minute journal ad nauseam, so I thought I would give it a try.  You can buy a physical version, but I'm using with the iPhone version, which is a third of the price.  

There are lots of reasons to keep a journal, but the main ones for me personally are:
  • To keep track of what I do each day
  • To try and develop a more positive attitude (I tend to be skeptical / cynical by default).
This app contains a few simple concepts, such as gratitude training and positive psychology questions to help people achieve a happier outlook with just a few minutes each day.

They also include quotes.  Today's quote is from James Barrie, "Life is a long lesson in humility."

What sort of a journal (if any) do you maintain on a daily basis?