Perhaps we need a Money/Finance thread??
Further to Soulnets great advice about banging as much as you can into your Mortgage & redrawing (if you have redraw, . it's a good thing to have) the other thing to do is get a Credit Card with the longest Interest free period you can, I have one with 55 days.
Then put every penny of wages etc into said Mortgage & pay for everything on the CCard, (when they DONT charge extra fees etc ,. so AVOID AMEX for this, as they seem to always have it), then when the Card payment is due, redraw from the loan to pay it, you will have enjoyed using the Banks money for free for 55 days, whilst cutting the Mortgage interest markedly, and over the years, the difference will be tens of thousands less paid for the Mortgage proper.
(Thankyou to Paul Clitheros, Money show from 20 years ago)
PS: The added bonus is for every dollar that gets churned through the card gives you the Points, which, for the last ten years have provided me with enough to cash in for 5 or 6 $100 voouchers to David Jones or Myer etc, which I then send to the kids & others as Xmas presents. Makes Xmas so much less stressful, and they dig it.