The statue in the middle of the pathways just outside the guild and Bowerstone is the key when it comes to both the cellar doors and the chest in Greatwood that only appears a little after noon. You must wait until the statue points to Bowerstone in order to get into the cellar in the back of the inn, and only when the statue points to Greatwood will the chest appear. The cellar contains a leather chest piece, and the Greatwood chest contains an Augmentation.
After the "break the siege" mission in Knothole Glade, before you leave town there will be little to no guards as well as NPCs. You can go to an armory or tattoo shop and steal everything from it without anyone seeing you. This includes one or two augmentations in the armory.
Silver Augmentation from White Balverine Mission also theres afew quick ones for you