I like to use 1/8" metal ball chain for fishing walls from above. I retrieve it with a 18" long flexible magnet. Both are sold at Ace. I can fish into an old box easily this way, eliminating the need to rip it out then replace it. There are 2 styles 1/8 ball chain that will stick to a magnet, one sticks way better and is stronger, the dull one I think. They are both gold colored.
Also, I always keep a roll of #12 solid green on the truck for short pipe runs. I just tape it on to the stranded conductors, strip the end bend it over then push them in. Quicker than using fish tape.
