Using GMail as your personal diary.
In addition to having a blog where I jot down interesting stuff that I wish to share, I also maintain a personal diary of sorts where I jot down about daily happenings, people I meet, my ideas and my thoughts. Most of these are personal in nature and things that I’d like to keep to myself.
I found GMail to be better suited than those online diaries. It’s powerful search feature is what gives it the edge.