This is my trap workout....its 2x a week. I do front raises on shoulder day and then at the end of the workout I do close grip Dumbell shrugs HEAVY!. Then workout 2(usually on chest day) barbell shrugs 10, 8 ,6, 6 wide grip HEAVY!!!. Then close grip DB shrugs with a weight light enough that u can squeeze up and then roll your shoulders back in order to work your entire trap muscle 2 or 3 setsx 10-12. If you want to vary it up you can try behind the leg shrugs, or reverse grip shrugs(bar in front of you-palms facing away) in place of the wide grip barbell shrugs. I personally believe that my traps are my strongest body part and I owe it all to this workout.