A list of cheats for PC version and Xbox 360 version.
When doing the quest to get married, marry a follower. Then, make them follow you and trade items. They should have 750 gold because of the store they run. Take their gold, leave, and wait one day to get more gold. Repeat this as many times as desired.
At the beginning of the game, when you reach the first town of Riverwood, find Hod. He usually stands at the top of the sawmill during the day. He will pay you for as much wood as you can give him. There is no limit to how much you can make by chopping wood and selling it to him, as he never runs out of gold like the merchants. Chop and sell as much wood to him as desired for easy gold.
Note: This trick requires a Soul Trap weapon and access to a smith and arcane enchanter. First, purchase an equal number of Iron Ingots, Leather Strips, and Petty Soul Gems. Fill the Petty Soul Gems (by killing with the Soul Trap weapon), then go to a smith. Create as many Iron Daggers as possible, then go to an arcane enchanter (there is one in Dragonsreach). Enchant all the daggers with the Petty Soul Gems (disenchant the Soul Trap weapon, if required). Go to a shop, and sell the daggers. Depending on your barter skill, you will make approximately 170 gold per dagger in profit, and will level up your Enchanting and Smithing skills. Note: Smith every three or four daggers, and enchant every one or two daggers early on.
This trick requires the necessary perks in the Alchemy, Enchanting, and Smithing skills. First, enchant armor/boots/gloves/etc. with alchemy boosting properties. Then, equip the enchanted gear, and create a potion that enhances your enchanting skill for a certain amount of time. Go back, drink the potion, and enchant new equipment with alchemy boosting properties again. Your new equipment will now boost your alchemy even more, which will allow you to create a potion that enhances your enchanting even more than the first potion you made. Repeat this as many times as desired. Then, create smith boosting equipment and a smith boosting potion. Go to the blacksmith, and create your gear while you have your smith boosting equipment/potion, and upgrade it to the desired stats.
This glitch requires you have 100 enchantment and the perk that allows you to add two enchantments to a weapon. First, go to the enchantment table, and select the soul gem you wish to use. Then, choose a weapon enchantment such as Frost damage, Stamina damage, Soul Trap, etc. Select a fortify enchantment, de-select the fortify enchantment, then select it again. You should now be able to select a weapon to enchant.