Taking a part time job is probably the easiest and the time tested way of earning extra income. One can take up a part time job in practically any and every field, from accountancy to any fast food outlet to a retail showroom. You can take up jobs in sales, marketing, production or finance. Even convert your hobby or talent into an income stream for example, cooking, gardening, playing music instruments, singing, photography etc.
The limits and possibilities are endless. Some of the obvious advantages are: