Not forgetting winning 16 tests in a row.
Twice.
One more thing on this subject. The West Indies' 11 Test winning streak in the 1980's is made extra noteworthy due to the problem of slow over-rates at the time (largely their own doing considering they employed four fast bowlers coming off long runs), and the fact play would stop at 6pm sharp regardless of how many overs had been bowled for the day, or if the match had been affected by rain etc. Draws were far more common then and a series clean sweep of victories extremely rare.
During Australia's reign it was rare we didn't see the full 90 overs bowled in the day, lost time was made up either on the end of the days play or the start of the next, leaving teams little choice but to play for the victory. Draws became almost a thing of the past and results became common place, even at previously notorious "draw" venues like Adelaide.