Sell things people need. The more expensive and in demand, the better... The more flooded the market, the less appealing it is.

No shortage of ways to acquire those things either. Battle jobs can farm, gathering jobs can gather, and crafting jobs have a wide range of things they can keep stocked in the wards to sell, just a matter of retainer and bazaar upkeep really, past that the gil makes itself practically.

If you wanna get a group thing going, could always farm teh NM's... Dunno if those drops still sell like they used to though. Can also try for the runestone gear from faction leves, but again, no idea how much that stuff goes for now.

As far as what sells, it varies. Poke around the wards, find stuff that isn't in stock or is low in stock but sells fast, and capitalize on it. If a market is flooded and the prices are shot, save what you have til the price comes up again, assuming it will. Obviously, if a patch changes either the supply or demand, and a market is crashing where you know it won't pick back up, that's about the only time you wanna start the ruthless undercutting to offload your stock.

In the long run, you'll do much better with certain practices and a moderate income than you would if you ignored them and had a fairly high income. The trade off of course is usually time. Don't buy stuff at a high cost if you can make or get it made for a tenth the price, which is true for 90% of the gear in the wards. For crafting, supplement your mat stocks by farming on jobs you level, or gathering, or if you really need to, on a job that can't get SP, but that's often a waste imo. When you do need mats or shards from the wards, have some patients and wait for the market to flood, prices can naturally vary by quite a lot. Say you need tons of shards, and the average price is 150... If you wait a while, and keep an eye out, you'll probably see them drop to 100 when the market floods, even lower sometimes. Then you buy them all up. Same goes for a ton of stuff, and with enough purchases, that can save you fortunes.

Speaking of that, if you have gil to invest, and patience to go with it... Buying and selling can make you a good chunk of gil if you play your cards right... I don't normally go that route though, I prefer to let people who actually need the stuff to buy it, rather than plunder the good deals and resell them... Kind of a crummy gil making tactic tbh, but it can and does work, so people will do it... Can also backfire though.

You can also do certain more tedious synths for gil, that nobody else wants to do. It's a pretty big timesink, and I wouldn't bother, but if you're really strapped for gils it can get you a bit of it... Perfect example would be turning crystals into shards... If you go and buy crystals cheap, then break them, you can triple w/e money you spent on the crystals easily, even if you sell the shards cheap. More if you HQ them, or at a faster rate with hasty hand.

Again, stuff varies all the time... But look for some of the higher priced stuff and go gather some up. There's logs and hides that fetch 10k+ easy and are really not that tough to get... Flax and cotton bolls sell for less, but their needed by the hundred and will sell in mass, also they're not hard to get in good quantities. Sinews, fish, ore, etc are also good, and all are especially susceptible to market fluctuations, so hoard them up and sell high when things get low in stock.

Ultimately, the best gil you'll make will come from crafting. If you invest the significant time and gil into getting one or more crafts up there, you will be able to make plenty of gil just from keeping normal quality wares in stock that people need. Not to mention that the HQ items you can make can fetch quite a pretty penny on top of it.

In the more long term, crafting is even more lucrative... When new gear comes out, the first few HQ versions of it, especially the HQ3's, sell for truly enormous amounts sometimes. Milk it for all it's worth. If someone wants to be one of the first on the server to get a HQ3 shiny new piece of gear, they have to pay out the nose for it because of all the demand and the lack of supply. Play your cards right and you can make all the gil you'll need til the next big update just from milking one batch of new items like that.

So really, all it takes to make gil is a little market research, planning, and initiative. Any specific method someone tells you will never be the best, or even that good of a way to make gil. It'll be mediocre at best really. Reread this post, think it over, and then go try some things out and hone in on what works well for you that also fits your playstyle, and you shouldn't have any problems with gil. That goes for anyone. If you don't spend a whole lot, you can get by so easily it'll hardly be worth mentioning... If you plan on spending huge amounts, capping loads of crafts, decking yourself out with +3's, and having vast pools of gil... Well, it's not out of your reach, you just have to put in a lot of time preparing your characters crafts and your knowledge, and you can be raking in the millions of gils... Whether all that effort is worth it to you is another matter, really depends on your playstyle... Might be better off fishing or chopping wood... Gil isn't everything after all. :P

Still though, if crafting is a game you like to play, and you do end up getting good at it... You'll be able to make a whole nights worth of farming look like chump change in a relatively short session of crafting. And if you have space, it's always a good idea to keep the mats handy to make more easily and quickly. Really though, with 2 retainers, you can stock 20 different items. Play it right and the gil just pours in. The HQ's you get you can put in your personal bazaar and go out and sell by making your bazaar get some views or depending on your item, if you absolutely have to... /shout.

That about sums up the advice I has for anyone looking to make some gils. If you're absolutely against gathering and crafting, and are still a low lvl battle job, at least pick your target mobs well... For example, if you level on opo's, you get boatloads of worthless fruit. If you level on wolves, you get buffalo hides and some other mats. In parties, try and lean towards other profitable mobs.