Diary: Winning advertising formula

You know you're on to a winning advertising formula when other envious advertisers try to copy your campaigns. L'Oreal's "Because I'm worth it" is clearly one such case, if the latest edition of Farmers Weekly is anything to go by. The famous ad slogan has been purloined by not just one, but two copy-cat advertisers, though we can't help but think L'Oreal will be less than flattered.