In one fantasy league, I needed to spot-start a wide receiver, so I went out and snagged Terrance Williams. He brought me eight points, a solid enough return.
In a two-quarterback league, I had Michael Vick hurt and hated Terrelle Pryor's matchup, so I went out and got Joe Flacco on waivers to pair with Andrew Luck. Luck didn't do much, but at least Flacco was good for 19 points.
The point here is simple—if you play the waiver wire correctly, it can literally be the difference between a win and a loss. With my Week 7 waiver-wire guide, you'll hit this waiver period with a leg up on the competition.