If you never use your Yellow Pages or White Pages telephone books, you can choose to opt out from receiving them.   You need to do this every 3-years, but Sensis say they send you an email asking whether you want to opt out again when the three years are up.

The time to do it is now.  I know two people who have to wait 3-years to opt out because the time period for their area has passed.  I was successful in opting out a couple of days ago.

You can cancel them via the net here –

If you are a business call – 1800 008 292