Using history effectively

Read an interesing article on Jun 2009 LINUX Format. Thought I write it down

1. Solution 1:
   If you are using BASH, and you will get to see a list of commands that have been typed.
   # history
   
2. Solution 2:
   Press Ctrl+R and a "reverse-i-search" prompt is provided. Just type what you need to search
   
3. Solution 3:
   .bash_history can also show the list of commands used. Just
   #less .bash_history
   
4. Solution 4: To record the command you use, you can use script
   Before you start logging, just type script and the entire content of the session will be saved in a file called typescript. To end the session, just press CRTL+D.

My favourite. just the good old history