For assigning shortcuts -
Goto preferences in TextWrangler (Cmd + ,),
Click on Menus & Shortcuts
Select Text on the right side box.
Expand Text Filters
Click on the plugin (on to the right most side)
Type a unique key combination
My Life App - Happy Days. Track your happiness at the end of your day, indicating if the overall day was a happy one or not. Over a period of time, this data helps you to note how you felt and any changes in your life style are required.
Have fun and see how you feel about yourself over a period of time!