Sorry for the title name....
I made a this simple surface node setup you can use for seamless "non-tiled" texture look. Its not perfect, but i think it works quite well on ground and some textures. You can tweak it from turbulence2d node and size node. Size node is global texture size.
Sorry my English is not very good. I hope image attachment explains it better.
If you test this surface, it may ask you a missing image... just load any texture you want.