A collection of lists (30s and others) that can be referred to at the table.
What happens? Are you kidding me?
Save/Help the Halflings! They offer rewards. Material and otherwise.
Have you ever been in a position where you needed a quick break but your players were too ancy to break as well?
Nearly every primitive culture has had rituals and celebrations to guarantee the proper passage of the seasons and to ensure the fertility of crops and animals. Oversight of these ceremonies was generally the provenance of local kings or priests.
Suppose that the adventurers dispatch one of these fellows. The local peasants may become hysterical, fearing famine and death will stalk the land. Alternatively, they may want one of the new heroes to become king. For a while, this can be a good thing, but the first time that the crops fail, the superstitious locals will want to sacrifice their new leader.