TIP #1: TEACH ALTERNATE BEHAVIORS
One way to address problem behaviors is to substitute then reinforce another behavior. Sometimes called alternate behaviors or replacement behaviors, differential reinforcement of incompatible behaviors (DRI) is simply the process of teaching a behavior that is incompatible with, or cannot occur at the same time as, those annoying problem behaviors. Your dog jumps? Teach him that sitting gets him attention. Your dog barks? Teach him that lying quietly in bed gets him something yummy. Focus on replacing negative behaviors with positive behaviors.
TIP #2: DITCH THE "NO!"
"Fido, no!" What does this mean to a dog? What if your boss walked up to you and shouted "no!", then walked away? What information is that giving you? Communication needs to be clear and consistent. Instead of trying to correct or punish bad behavior, teach your dog the behavior you do want. "Fido, no begging. Go lie down." tells the dog exactly what you want him to do.
Jeff Dentler, CPDT-KA, CTDI