Money, money, money

[Cacophony]

You can also join an academy that gives good rewards. That way you can make money while you level.

This is how most nubs make their money nowadays anyway...I wish this system was out when I was a nub D: ...but everyone else was a nub back then too x.x

[Euphoria]

My main ways of making money:
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Production ($$)
Pros: Do not have to be at the screen all the time (can afk making scrolls, buying materials, etc.) Can save additional money by making scrolls/stones/pots instead of buying them from other players.
Cons: Takes money and time to collect the materials you need. Takes time to sell and build up production skills. Must compete with other venders. Frequently requires a lot of inventory space.

Abyss/Grinding ($)
Pros: Can get armor, materials to use/sell, enhancing stones while gaining exp.
Cons: Need a good grinding party or be able to solo; majority of stuff does not sell for much.

Farming at Dungeon Bosses ($$$$$)
Pros: At low levels, even badly statted blues can sell for several hundred silver. Godly blues can sell for gold +0. By far the quickest way (abiding by TOS) to get gold.
Cons: May take copious amounts of time to get drops. Must have the scrolls/gear/party that enable you to farm bosses efficiently. May have to buy/use rant. Better if you are in a range of levels within the level of the boss.