Try rune arrows, then ashes...
First, merch rune arrows, " What is merching some of you may ask?" Merching is buying a certain item then selling it for more...just (ONE) 5% more...it'll work...then buy a bunch of willow logs...make fires, THEN take the ashes and sell them at the G.E, the ashes sell for more than the willow log itself..PLENTY more. So I highly recommend this if you wanna make some cash quickly, I made ONE mill in 2 days

. of course I am not member, So it is a little hard to merch intill you rich that high amount of money, wich I am almost there, then I'll start merching with crowns and santa hats and what not, also, buy a fish mask, down it 5%, then up it two 5%'s....Also works if you have enough money...
WArning, willow logs take a bit to burn out, if you are impatient then just buy regular logs, still sell for more than what you paid for for the logs.