In Oakvale, buy every emerald in the shop. Then, look at the next delivery and sleep for the amount of time needed for the store to restock. Keep doing this until you have about 90 emeralds. Note: Make sure to purchaseall the emeralds in stock at once, so that you will buy them for less gold pieces. Once you have 90 emeralds, sell them to the shop, then buy them back. You should be able to sell them again for much more than you bought them for. It is possible to get 1,000,000 gold pieces in ten minutes. This also gives you a lot of skill.