Using aliases in Linux can save you a lot of time. Here's an example:
alias www='cd /var/www/html/'
Instead of typing "cd /var/www/html/" to enter your web directory, now you can enter "www", a savings of at least 14 keystrokes each time you use it.
This one will switch to the usr/sbin directory, restart apache, then switch to your home directory:
alias apr='cd /usr/sbin/;sudo ./apachectl restart;cd'
You can also just do:
alias apr='/usr/sbin/apachectl restart'
But the earlier example shows how you can string multiple commands together.
Place these aliases in your HOME/.bash_profile file and they will be available each time you login to your machine.