I've been a member of the documentation team for a few years, so most of my contributions are in the current Ubuntu trunk. These are just bits and pieces accumulated over the years.
The Unanswered Posts Team has a Firefox plugin that integrates with their tracking system. Bodhi.zazen hosts it but his certificate &&|| Firefox seems to be playing up, so I'm mirroring it here.
Jaunty UNR wireless not working - blacklist acer_wmi.
Shamelessly ripped from Dustin's site because its so useful…
Add to .bashrc
alias alert='notify-send –urgency=low -i “$([ $? = 0 ] \
&& echo terminal || echo error)” “$(history|tail -n1| \
sed -e '\s/^\s*[0-9]\+\s*;s/[;&|]\s*alert$'\)”
Needs libnotify-bin