Blake did not mind me leaving a couple chests of loot in his store (in case he offered a spell book). Leave a teleporter stone in the black smith's house, and teleport in after he leaves and locks the door. You can also put a container in your inventory, open it, then drag and drop things into it. This is not considered stealing <img src="/ubbthreads/images/graemlins/eek.gif" alt="" /> even when you walk away, though removing the items from the chest the first time is considered stealing, so make sure you are alone if you try this.