There is a package, named fortunes-debian-hints, which brings you known or unkown tips (depends on you) about using Debian in a more efficient way.
To install it :
root@localhost:~# apt-get install fortunes-debian-hints
To test it, please put the following links in your .bashrc :
if [ -x /usr/games/fortune ]; then
More information on the Debian official wiki :