From the same school of thought as, "Hey GM, which book did I just randomly pull from the shelf of the wizards' library?" No plot hooks here, just flavor additions.
Found, normally, deep in the swamp, the Friar's Weed's poison is something to be watched for.
The thieves guild of Mysantia has paid the stone masons guild to put a particular pattern into the stone of new multi story construction.
A small bonus to the climb skill is the result..