I really like what Alain de Botton writes about clichés in his book How Proust Can Change Your Life:
"The problem with clichés is not that they contain false ideas, but rather that they are superficial articulations of very good ones. (…) So if speaking in clichés is problematic, it is because the world itself contains a far broader range of rainfalls, moons, sunshines, and emotions than stock expressions either capture or teach us to expect." (pages 88 and 97)
Today I also enjoyed reading this: "How Do We Write Now?" by Patricia Lockwood at Tin House.