Dear TheWebers:

Bring in the curtains.  Curtains are the way to go.  They protect your furniture, provide great sound control, and they help keep the draft out during the winter season.  We recommend purchasing 6 panels of ready made curtains.   The curtains must be pieced together; three panels per side.   We definitely recommend hiring an interior designer or decorator to work on this project.  Your window is extremely wide.  With six panels it is not possible for the curtains to move back and forth therefore we recommend hiring a professional who knows what they are doing is a must.