Are you bored yet? I am. And I was even when I was doing it: tedious work, although with reasonable pay. Some guys spent their whole working lives doing it, from the invention of four-color photo-offset lithography in the early century to the coming of computers, which destroyed a whole range of jobs in the printing trades. It took most of a day to do a single mechanical, and I imagine everything I did is now done in fifteen minutes on a computer, with PhotoShop and other tools. Progress, of course, and there have been any number of similar advances, and the trouble is that my head is full of obsoleted stuff as is the head of anyone else my age, and so will all the stuff in your modern head be obsoleted, and sooner than you imagine.