If you are like me, you understand that a little bit of prep work on a job will eliminate headaches that will creep up down the line. A great example of that situation comes when installing a window. If you flash the window improperly, you might be allowing water to seep in for years to come. That seepage can cause rot, or worse, damage due to insects. You could see a water spot on your wall or floor 2 years down the line only to find that a poor window flashing job allowed water to trickle in and destroy everything.
This video is nothing more than a 2 minute animation that displays (very clearly) the proper sequence for house wrap, flashing, caulk, and tape. Follow the sequence and your window flashing jobs should hold up for decades.