Sveinn has collected many secrets by overhearing people who ignore his presence. Give him some Kinah and use the secret he tells you to make even more money. You can choose one out of three options: For 500 Kinah you get 15000 XP and 1000 Kinah, For 5,000 Kinah you will get 10,000 Kinah and 50,000 XP. (You will need to talk to three other people in town), For 50,000 Kinah you will get 40,000 Kinah and 200,000 XP (and additional 10k Kinah and 10k XP from the followup quest). You will need to hunt for the pendant from the Daru. All of these are fairly easy and all depend on how much Kinah you are willing to part with for a quest.