How to Add Trim to a Window

I recently added wood frames and trim to the windows in my bedroom. I simply finished nailed 1 x boards over the drywall frame, and trimmed out with casing. Unfortunately, I did have a lot of leftover scrap since I had to buy 8ft boards and my windows are only 5ft tall. I would recomend buying 6ft boards unless your windows are wider/taller than 6 ft.You can read a more detailed description on my blog http://pneumaticaddict.blogspot.com