Tying yourself to the mast is the oldest one, but there are other ones such as locking a credit card away with a key or not bringing junk food into the house so you won't eat it or unplugging your Internet connection so you can use your computer.
Atarse a un mástil es la forma más antigua, pero hay otras, como guardar bajo llave la tarjeta de crédito, o no traer a casa comida basura, para no comerla, o desconectar la salida de internet para no usar el computador.