as a noob most people are pinching their pockets because of hp stones and sp stones. I know I did. It was a hassle, but I finally was able to get more money and to use it on more than sp and hp stones, skills!
._. but after being a noob the money you can collect is easy and simple.
I am cheap. I sell things at my own price, if no one buys it, I lower it. And if I get below NPC price I say to myself "well I got it for free, no matter how much it sells for I'll make money" so I don't inflat, or I hope i don't o.o!