most people seem to use cd and ls very frequently. Very often they are used one after another. This reminds me of a trick I heard in a talk by Damian Conway:
alias cdd='cd $l; ls'
I can't find the original slides, here is a writeup by cromatic:
I used to have cdl aliased to that, and lost track of it during a long sojourn in Windows. I'm still in the process of building out a really kickass bash again. Thanks for the reminder of that alias!
http://www.oreillynet.com/onlamp/blog/2003/07/oscon_2003_day...