If you head North to the City of Rathir, The Common House
will be to your immediate West, once inside the Common House
head up the short stairs on your right and into the Storeroom.
In here you will find about 15 chests to pick and a LOT of
boxes to smash to smithareens! I was only Level 2 in
Lockpicking and still managed all the chests bar the Very
Hard ones. Take a few picks and voila!