How to "Staple Electrical wire" in hard to reach location !

Have you try to staple electrical wire-where the place is limited  to work.  Some time to staple a wire in ceiling joint or hard to reach-its not easy.    Holding wire and staple with one hand-and not hitting your fingers.
The easy way to do it:   take a strip of card board- 1"- 1 1/2" wide.
Have the staple with the wire punch thru the card board.

 With one hand you grab the card board-and place it where you want.

 With your other hand,  hammer the staple(save your finger) , cut off the card board.