I like to do a burnout set with a light weight in the same workout as my heavy low 3-8 rep excercises. I might do sets of 5 on the incline bench and then flat fly 40 pounders for 50reps. Or one I really like doing is working up to a massive double on squats, and then finishing with a set of as many reps as I can do with just one plate, record is 135 x 70reps without locking out. It works great, and make ou feel like a real bodybuilder too!