Is it really that easy?
Yes it is. If you shrug more you will get bigger traps. In fact if you really want big traps you should do shrugs every chance you get.
Lets look at some possible occasions to do shrugs:
After a set of biceps curls
When you do your curls keep your straps on but don't attach them to the dumbbells. When you finish your curls put the dumbbells down and strap up. Now do a set of shrugs. Some will complain that the weight you use for biceps curls is to low for shrugs. This is because they do the shrugs wrong. Use a full range of motion and hold the contraction at the top. Done in that manner the weight will be heavy enough. Please don't do the "retard shrug" where you strap a heavy weight to your hands and just nod your head.
After overhead presses
When you clean up after your overhead presses, do a set of overhead shrugs for each pair of plates you take off the bar.
After barbell rows
When you end a set of barbell rows just stand up straight and shrug away.
After deadlifts
When you clean up after your deadlifts, do a set of shrugs for each pair of plates you put away. Once you get down to a shruggable weight that is. If you can shrug your deadlift weights or more, I will once again argue that you are doing the shrugs wrong.
After squats
When you clean up after your squats do a set of hise shrugs for each pair of plates you put away
After dumbbell presses
When you do your dumbbell presses keep your straps on but don't attach them to the dumbbells. When you finish your dumbbell presses put the dumbbells down and strap up. Now do a set of shrugs.
After standing calf raises
When you finish your standing calf raises do shurgs by lifting the shoulder pads.
Use straps for all your shrugging, unless you need to prioritize your grip.
