Check out guy, while you are waiting for Zerocoin ... It already has been used in Zerovert https://bitcointalk.org/index.php?topic=871584.0


1. Create MINT Zerocoin with Mint Zerocoin button


2. You will see MINT Tx in Transaction tab


3. Waiting until at least 8 confirmations for the MINT Tx


4. Go to Zerocoin tab, then click Spend Zerocoin button


5. You will see result that the MINT Zerocoin changes from New to Used


6. Wait for a confirmation for the SPEND Tx


7. Selected "Settings" > "Options"


8. Selected "Display" tab > Enable "Display Coin Control features (expertes only!)"


9. Click "Send" tab, selected "Inputs..."


10. Selected Coin that you got from SPEND Tx, then click "OK"


11. You will see Send tab, like the below picture, now you can send coin without trace.