Steve Summit writes:
This may well have been suggested before, but: what if there were a variant on Special:Random that somehow gave you a random article in a category of your choice?
This popped into my head while thinking of better ways to announce cleanup crusades (better, say, than proposing that everyone take an hour out of navel gazing on the mailing lists and instead select N articles from Special:Random and clean them up), but it'd probably have plenty of other practical applications, too.
There's bug 2170 http://bugzilla.wikimedia.org/show_bug.cgi?id=2170 --VasilievVV