Lothering quest unlimited XP
Near the start of the game in the town of Lothering, if you speak to Allison you can get the quest "Traps are a Girl's Best Friend". You need three spring traps (which can be bought, looted or made) to complete the quest. After completing the quest, speak to Allison twice. The second time you speak to her, the quest is refreshed and you can repeat it again for 100 exp each time. As a bonus, you also get 50 silvers each time you complete it. This is a great way to gain plenty of cash and experience early in the game. If you need more traps, cross the road to Dane's Refuge and buy trap triggers from Barlin for 2 gold 57 silver per stack of 99. With 1 level of trap-making you can convert the triggers to spring traps. With each stack of 99 triggers you buy (and convert to spring traps) you can complete the Traps quest 33 times! So for each investment of 2 gold 57 silver you make to buy the triggers, you can make 16 gold 50 silvers by repeating the quest! What a deal!