Emacs tips
Take a glance at my .emacs file
I consider emacs keyboard macro the most powerful tool. You can create and repeat an operation sequence as many times as you want.
To create a keyboard macro follow this instruction
Press control and then ( to
start the macro creation
Do changes on your buffer
Press control and then ) to
wrap it up
Press control and the x to repeat one time
Press control u 1 0 control x e to repeat ten times
Note that you can replace 1 0 by any number of times you want