Gmail move toolbar to the right

  1. Install Stylish - Custom themes for any website addon

  2. Make a new style for URLs staring with https://mail.google.com

/* toolbar */

.nn {
    float: right;
    margin: 0;
    padding: 0;
}
.nM {
    margin: 0;
    padding: 0;
}

/* main area with emails listed */

.AO {
    margin-left: 10px;
    padding-right: 0;
}
.aeH {
    margin-left: 10px;
}