Using the Scissor Tool

Here I've gone off and used the scissor tool for the first time (of course this is after discovering what wouldn't work -- your time will come slice tool!).
PICTURES ARE CLICKABLE
First, I had a line I wanted to cut down (that'd be the main entrance, smack in the center of the page).
Then, I added points to my line with the Pen tool, using the one with the plus, placing them in the spots where I wanted the line to stop and start.
Using the Scissors I clicked the two points that I had created. This separates it into it's own line but doesn't delete it, so that's all that's left for me to do.
Delete and viola!