Tailoring + ?Follow

As to way to somewhat supply yourself, I'd take up Skinning as a secondary. That way you'll have leather for some bags which require it (for example, Runecloth bags need two Rugged Leather, so I save myself a bit by skinning my own kills).

Many people take up enchanting to supply items to disenchant, but enchanting has never been my cup of tea; so no comment here :-D. Basically, I suggest you supplement your income with hunting good items that sell well. Also keep in mind that as a Tailor, you will most likely not sell cloth, so that takes a decent chunk out of your income. Therefore, a gathering skill can be very beneficial to make up the loss.