I'm glad to see that so many of you think like me.
No, you don't need those items.
Look at it this way, every time you tighten a bolt, there is a troque value that is optimum. Too much torque and you can strip the threads, too little, and the bolt can come loose. But do you go out and buy a torque wrench to tighten all of your bolts? No, it's a handy tool if you need to be THAT exact, but in most cases, we just don't need to be.