Lifechangers: Tosca Reno's Weight-Loss Tips

Health and fitness expert turned "Extra" Lifechanger Tosca Reno gives some advice on how to prevent putting on the pounds at holiday time.

"To keep those arms looking tight and toned in a gorgeous cocktail dress, do tricep dips," Reno said. "They're going to banish batwings forever!"

Find out more great pointers!

Also, to win a copy of Tosca Reno's book, "Your Best Body Now," enter here!