You must be using either cigarette lighter or gas burner in your daily life, which also uses piezoelectric effect as it can produce electric pulse by applying certain amount of force, which is used for triggering a spark.
The watch that you wear daily also uses quartz resonator, which is a piezoelectric material. This works as an oscillator when an electrical signal is applied on it. Due to electric voltage it resonates at certain fixed frequency which is used for controlling the gears inside t