Here is a simple guide to help you get started with making more zeny without farming things. We all hate farming! However, this guide requires you to have some zeny and a merchant to begin with.
1. Go on ragial. Just about the best website for any iRO player.
2. Click on where it says cheap.
3. You will now see a bunch of items that are sold at %’s lower than they usually sell for. Look for the items that are 60% – 25% cheaper.
4. BEFORE you buy anything, do a little research and search that item up on ragial. See if there are other people selling the same item and how much they’re being sold for on average.
5. Buy and resell!
Ragial has been useful to me in many cases for buying and selling.