here is a tip for ya.. At Members treasure trail items who can be in f2p sells for less price then in f2p worlds.. So go to forum and find someone who is selling wizzy g for 500k then add him and buy it.. Then try to sell at f2p worlds for 600-700k.. Thats what I did when I was f2p..
rune ores..seriously if you find some good buyers you can make a lot of money. but them for 10-11k ea..sell anywhere higher..try 15k ea. try buying thousands of runes at night from stores and during the day sell for higher as well
even iron ore..i hired some workers who agreed to mine and sell me their iron for 50gp each. Then I sold for 100gp+ each
Also lobs can make you some money. Buy for around 210 if you can find them then sell buy the 100 or 1000 for 250 each
if i was you i would invest in black [g] or wizzy [g] hats, if not buy 1k laws 350k and try selling 1k each FTP worlds thast 1000k from 350k. peace out
I even tried colored gloves at one point-pretty good $ actually-If your a member buy them in canifis for like 600-800gp(I forget the actual price)-then sell in free worlds for around 2.5k each-Even if your not a member just find a member that you can buy them from for around 1k-you more than double your $
p2p pin's arent worth the hassle. Yews, Runes, ores or anything you can buy in bulk is the best route. Find workers to sell u ores for real cheap and keep having them get the ores then just sell for max price.