January 24, 2012 8:08 PM EST
Or find a quest bug which gives you infinite gold lol.
I found one in Blood on the Ice the other day (didn't use it much since I have 100k+ in my inventory and chests full of stuff I could sell if I need more).
To exploit it... When you have the option to give the amulet to old make from the hall of oddities or whatever, do it, he'll give you 500 gold. Then pickpocket the amulet back. The dialogue option appears again. If you use it again he'll give you another 500 gold. Keep it up for however long you want.
Another exploit is to find somewhere where the guards (or someone like the guy in the thieves guild) are practicing archery. They have infinite arrows. So go and take them from the target. You can now go and sell the arrows, come back and take some more. Also you can reverse pickpocket better arrows into their inventory and make more money, or a source for an infinite number of better arrows for you to use.
Another trick is to save the money you have. I was tempted to spend my money on training early in the game. But then thought I should pickpocket my money back. Soon found the trick to be that your pickpocket chance depends on the value of what you're taking. So if you train 5 levels then try to pickpocket you'll be out of luck (0% chance to steal), but if you train 1 level, take your money back, train 1 level...