Spice up your boring life by tackling it’s root cause — overused boring fonts. Change the src values as required.

killboringfonts.css

/* Killing the WORST offender, the much-beloved Hell-vetica */
@font-face {
    font-family: 'Helvetica Neue';
    src: local('Nimbus Sans L');
}

@font-face {
    font-family: 'Helvetica Neue';
    src: local('Nimbus Sans L Bold');
    font-weight: bold;
}

@font-face {
    font-family: 'Helvetica Neue';
    src: local('Nimbus Sans L Italic');
    font-style: italic;
}

@font-face {
    font-family: Helvetica;
    src: local('Nimbus Sans L');
}

@font-face {
    font-family: Helvetica;
    src: local('Nimbus Sans L Bold');
    font-weight: bold;
}

@font-face {
    font-family: Helvetica;
    src: local('Nimbus Sans L Italic');
    font-style: italic;
}


@font-face {
    font-family: Arial;
    src: local('Nimbus Sans L');
}

@font-face {
    font-family: Arial;
    src: local('Nimbus Sans L Bold');
    font-weight: bold;
}

@font-face {
    font-family: Arial;
    src: local('Nimbus Sans L Italic');
    font-style: italic;
}

/* Times Up! */
@font-face {
    font-family: 'Times New Roman';
    src: local('IBM Plex Serif');
}

@font-face {
    font-family: 'Times New Roman';
    src: local('IBM Plex Serif Bold');
    font-weight: bold;
}

@font-face {
    font-family: 'Times New Roman';
    src: local('IBM Plex Serif Italic');
    font-style: italic;
}

@font-face {
    font-family: 'Times New Roman';
    src: local('IBM Plex Serif Bold Italic');
    font-style: italic;
    font-weight: bold;
}

/* Fixing Courier */
@font-face {
    font-family: 'Courier New';
    src: local('CourierPrime');
}

@font-face {
    font-family: Courier;
    src: local('CourierPrime');
}

/* Georgia killer */
@font-face {
    font-family: Georgia;
    src: local('PT Serif');
}

@font-face {
    font-family: Georgia;
    src: local('PT Serif Bold');
    font-weight: bold;
}

@font-face {
    font-family: Georgia;
    src: local('PT Serif Italic');
    font-style: italic;
}

@font-face {
    font-family: Georgia;
    src: local('PT Serif Bold Italic');
    font-weight: bold;
    font-style: italic;
}