The break-up handkerchief is also a break-up letter. Two-in-one so to speak. The handkerchief is written up with generic reasons why people break up relationships, so all you have to do is hand it to the person you're dumping and they will know what time it is. This is a very convenient use of a handkerchief.
Implications - The break-up handkerchief takes a traditional method of communication and throws a new element into the mix. Shows such as Sex and the City highlighting an inappropriate Post-It note break-up has shown a movement towards how North American society perceives relationships. People have now begun to use unconventional and unimaginable ways of breaking someone's heart.