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
    /usr/games/fortune debian-hints
    echo “”
fi

More information on the Debian official wiki :

fortunes-debian-hints