With the Thieves Guild missions to steal X worth of items from Y, I find myself with a lot of useless items that aren't even worth selling.
So usually I just stop and drop everything on the ground. Unfortunately, this means that Riften now has random piles of plates and goblets and other random garbage everywhere. I guess they don't have sanitation workers in Skyrim.
Will these items eventually disappear or will I have to do a special thief "mission" to steal all the garbage off the ground and dump it in a container?