Yep, a short list of useful one-liners would go a long way. Often, your use-case will be a straight specialisation of one of the examples, and if not, chances are you can cobble together something from several examples. I'd like to have a auxiliary help command for this, e.g. example ffmpeg in addition to man ffmpeg (another 18k words manpage).
Edit: This works rather well:
function cmdfu() {
curl "http://www.commandlinefu.com/commands/matching/$@/$(echo -n $@ | openssl base64)/plaintext" --silent | sed "s/\(^#.*\)/\x1b[32m\1\x1b[0m/g"
}
Another alternative is <a href="http://cheat.errtheblog.com/>Cheat</a>, which is essentially a CLI accessible wiki of usage examples. It was originally focused on Ruby (and still is to an extent), but it gives decent results a lot of the time.
You could try the OpenBSD man pages. One of OpenBSD's must-haves is good documentation. If I'm looking for an example and the Linux man doesn't have one, I'll often google for "openbsd man xxxx".
Of course, watch out for differences in the utility. OpenBSD (usually) won't have any GNU extensions, for example.
Same here, most man pages seem pretty good at documenting all the available options, but are pretty useless at explaining how the tool should actually be used.
I'd like to see someone dump all the common man pages into a public wiki so people could flesh out the usage examples and suggest alternative tools.