Everyday I see threads about "How can I make tons of gil super fast?!?!?!" Well I got news for you, there is no super fast way to make tons of gil. You have to work for it...a lot. Not that working for it is a bad thing at all. I'm currently saving up for Ochiudo's Kote (425k on Siren) and in the past 3 days I have made 132,000 gil. I know that is not a super amount of gil or anything, but it's the most I've ever had and I'm fairly proud of it. I took my 33mnk/16thf and hit the trail. The following is places I went to farm and what I killed and what I did with the drops.
And remember: Gilfinder, Steal, and Treasure Hunter is your friend...
Dangruf Wadi
This is a fairly decent farming area I think.
Giant Grubs
These little guys drop all sorts of goodies including:
Flint Stones: great for low lvl crafting or just sell to NPC for 5 gil each (it all adds up)
Zinc Ores: sells for about 300 a pop at the AH and sell fairly quickly
Hermit Rings goes for 900-1000 each at AH and pretty frequent drops from them.
Goblin Butchers, Tinkerers, and Ambushers
Awesome for gil drops if you have Gilfinder ability. Average gil drop is from 30-50 gil per goblin. The Ambushers drop Animal Glue and the Tinkerers and Butchers drop things like Brass Armor and Leather Armor, great for AH selling.
Goblin Leechers, Muggers, and Gamblers
A little more risk involved with these, but the rewards are great. First off the gil drops for these are even better than the other gobbies mentioned before (50+ gil per fight). These goblins have drops like Sneak, Silence, and Protectra scrolls. Lastly if you have the Steal ability you can grab Silver Beastcoins from these little punks. The Silver Beastcoins sell for about 4-5k per stack but I prefer to use my goldsmithing skill to craft them into Silver Ingots that sell for about 2k each and sell quickly. I farm all my crystals so the only gil invested in this is for synthesis support (60 gil) to insure there are no failures in crafting.
Treasure Chest Hunting
This is just something fun to do as you travel from area to area in the Wadi. Kill mobs like Tinkerers, Ambushers, Snippers, etc to get the Dangruf Chest Key then trade it to a treasure chest. Items found can be Tropical Shield, Lapis Lazuli, and Fish Scale Shield not to mention various amounts of gil can be had from these chests too.
Konschtat Highlands
Huge Hornets
These guys drop Beehive Chips that go for about 3k a stack or can be turned into Beeswax that is about 10k a stack. I prefer to just sell the beehive chips straight up.
Bees were the only thing I hunted in the highlands but sheep and rams are great gil makers too for their skins,teeth, and horns.
Pashow Marshlands
This is a goldmine of great drops
Goobbues
Treant Bulbs great for AH selling or just selling to NPCs for a quick buck
Boyahda Moss yes I know these go for like 7k a stack at the AH, but I prefer to take them to Meylon the Sheep Herder in Selbina, he will give you 600 gil per moss and it raises your fame a little bit at a time.
Tree Cuttings these little gems are the main reason I hunt Goobbues. these do not drop very often but when they do they can be sold for 4-5k each or planted and grown into Tree Saplings
Malboros
Malboro Vines i think these sell for about 1k each at the AH, i may be wrong on that though.
Dodge Headbands I got 4 of these hunting malboros yesterday, they sell at the Bastok AH for 2,800 gil or for quick money can be sold to NPC for 1,900 gil
-------------------------------------------------------------------------------
These are basically the only areas I visited in my gil raising quest, a few more pointers though:
Kill every Amesthyst Quadav you see as they drop the coveted Quadav Backplate great way for a quick 500-700 gil at the AH (most of these sell within 5 minutes from when i put them up for sale).
NM hunting
Yes it is fun hunting NMs, but I prefer a steady stream of smaller income as opposed to waiting for hours and possibly getting zero income, so I'll take farming over NMs anyday.
Making Gil is Good...But Saving Gil is Even Better
Yes learn to SAVE your gil!!!
Best way I have saved gil is to use your feet. If it's not an emergency, etc then walk to your destination. Chocobos, Teleports, and WarpIIs although extremely convenient can be costly.
In my opinion, saving gil is as important as making gil. I hope this helps and I know I haven't covered everything. Please others feel free to add more to this, and I appreciate you reading this lengthy post. Cya around!!!!