Stringing up cables for surrounds

What do you folks use to "string up" your surround sound cables? I'd love to do it all through the wall, but because of how my room is laid out and the location of the speakers, I am not able to do this. For one speaker, I only have to run a couple of feet to a corner, and then down the corner, through the floor, along the basement (above the suspended ceiling tiles) and back up through a wall plate going to my amp. The other speaker is a bit trickier, as I have to either attempt to run the cable along one of the grout lines between the stones in my fireplace (which are straight lines, at least), or go over to the corner UP to the ceiling, along the top of the fireplace to another corner, and then down the corner, through the floor, etc.

I am considering using vinyl tape (painted to match the walls) for the runs down the corners, and small, clear plastic clips with "tabs" for the nail/screw to get them to the corners. The speaker cable itself is 16 guage, 4-conductor (used at two pairs), round cable, with a white shielding that may hold paint (though I am not positive).

Any thoughts, hints, suggestions, warnings?

Thanks, Tom.