How do you make a PB&J sandwich?

I'm curious as to how peple make their sandwiches.

When you have the bread laid out before you do you spread peanut butter first or jelly first? Do you start with the slice on the left or the slice on the right?

How many of you lick the knife clean before starting on the other so as not to get jelly in the butter or butter in the jelly? Or do you just go and get a fresh knife?

I start with the jam so I can wipe it off using the bread so I can dip it into the peanut butter jar without tainting the peanut butter.