Here's another one. Try doing your entire routine with dumbbells instead of barbells. You got weights going everywhere, one in each hand in different directions and if you have a flaw/one side compensates for the other with the bar, the dumbbells will tell you REAL quick. It's an excellent way to try and "even" your body but it too is an ego killer. Especially in heavy pressing movements.

Then you have kettlebells. They're even wilder because the weight swivels in your grip.