When you're tiling to an outside corner -- with the tile ending at the corner, i.e. not wrapping around -- how do you deal with the fact that, when you're facing the non-tiled wall, i.e. seeing the tile edge-on, you can see the layer of thinset behind it? Looks kinda ugly. How do you clean up that edge? Latex caulk? Joint compound feathered out onto the adjacent wall? I'm considering both approaches, but just wondering what the pros do. Thanks.