ok this cheat is really cool because you can sell things for double the prize, first of all get your most expensive item and put it in your junk pile, then go to a shopkeeper, go to your junk pile and press Y then A straight away and there you go you have sold something for double the prize.

ok this cheat only works in dragon age origions, when you do the quest for ducan where you have to collect the three vials of darkspawn blood and the scroll first of all collect the vials of blood but not the scroll, then go back to duncan when you talk to him he will ask if you have got everything you can pick "we have got the vials of blood but not the scroll" after that you will get experience, then you can keep on saying the same thing and collect more experience until you level up to 25.