ok im not the best mercher lets start of saying that lol but its not to hard
to start of go to
g.e chartthen click the most traded "more"
find a item that dose not change in price to often
ex. Eye of newt
Apple mush
White magic staff
there are much better items just did this real fast
now you buy the item for 5% less then market price and wait
once you get a nice amount you sell for 5% more then market price
then boom goes the dynamite!
its just like a side job basically