This will be a tad length and I know I'm a few days late, but it's worth noting for other new members -- I just came back to neo after a few years away and decided to start completely fresh, not even attempting to log into my original main. (I have access to it, I just wanted to start fresh)
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All the good stuff has basically been mentioned. Find some flash games you like to get you going. (Kass Basher, sponsor games, Fashion Fever (just start game and immediately end game for 300 per send in a matter of seconds) Splat a sloth, and adver-video all come to mind for quick, easy starting cash)
Neoquest 2 - The actual neopoints to time ratio is awful if you're playing it legit, but in my first week back, using Greasemonkey auto trainer and remote control with move scripts, I easily knocked out normal, evil, and insane with a nice payoff of one of the 1 mil+ prizes at the end while paying very little attention to the game.
(Important note - I had previously played and beat Neoquest 2 multiple times, both legit and with scripts, so despite being a few years, I already knew what I was doing --- Refer to - idnq-guide.com - for a good site with a solid basic guide and maps of everything.)
The payoff for insane mode ranges from mediocre for the staff to very good for the Bow or Wand. Evil mode offers 2 still just unbuyable items you could probably toss in your shop for 99,999 and have some quick profit. If you constantly overtrain while not even playing, it makes it easy, nearly effortless points.
Final note on this - the Neocodex member Neoquest has actually made an auto player for this that does much the same as the greasemonkey scripts I used, but seems to overall be a bit more intelligent. Worth looking into.
http://www.neocodex....neoquest-ii-ap/
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Main shop AB'ing on a brand new account is really only going to be decent if you don't try for anything fantastic (to be fair, this isn't a bad strategy if you don't have a brand new account). Creating a list for a low profit, high stocking store might be a good idea.
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Battledome actually offers some decent prizes now for low end accounts, so training up a bit to make the low end battles easy isn't a bad idea. A very basic set with some of the super cheap 9+ iconers (ridiculously heavy battle hammer, scroll of ultranova, and scroll of the scholar) a downsize and a bronze scorchstone (cheap overhealer good for low pets) comes to mind.
Regular codestones you can sell or use for your own training and red scorchstones you can sell for a decent, nearly instant profit makes it easily worth your time. (people are constantly buying codestones so just match or barely beat the lowest you see on wiz and it won't take long to sell)
The cost to train a pet to passable for low end fights with one dubloon coins costing only 1k is negligible. And since I've been averaging one red codestone a day so far, and a few other random goodies, its been worth it even if you don't plan on battling much.
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Key Quest --- I actually don't really like this game, but early on it can quickly make up some ground. Worth some time of legit play.
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The forgotten shore map was already mentioned, but it's worth mentioning again. It is so cheap you can afford it instantly and it will more than pay for itself the second you turn it in, and it gives you another daily that can bring in a little extra.
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And again, as already mentioned, and this goes along with the flash games already mentioned. There's score sending. Do not rush right into this without any knowledge. Look it up, there's tons of info about making lists and being safe about it. Going all in with 1000np scores on 50 games on day one sounds nice, but it's also not very believable.
I've done 0 score sending since my return, but I would strongly recommend low scores and only a few games at once. You can slowly add, and if you do this, it won't take much to add a game or 2 a day after playing legit so you can see real times and your own scores. After a week or so, you'll have a decent little list with legit times and scores that won't raise any red flags and the list has been hand crafted, so you're not copying any other exact lists others might be.
That covers what I can think of off the top of my head, along with the things already mentioned that I didn't touch on. I may add more later.. probably not, though. I'll forgot I even posted this by tomorrow morning.