Get extra practice. Read the Italian media (newspapers, magazines, radio and TV transcripts, archeological news, government statistics) or listen to Neapolitan canzone, or find any Italian Internet site. Go to http://www.mmdtkw.org/Italinks.html.
PS: 1. Everybody's favorite canzone is at http://medivia.sele.it/italiano/canzoni/oimari.htm.
2. Don't let the kids see the Alternative Italian Dictionary at http://www.notam.uio.no/~hcholm/altlang/ht/Italian.html