Hide Cluttered Backgrounds
*Photoshop Lightroom 2 Tip*
To isolate a subject that gets lost in a cluttered background, go to the Vignettes panel and use the sliders to darken as much of the background as possible. Then select the Adjustment Brush, choose the Exposure Effect, and set Exposure to -4.00 ( its lowest setting ). Now paint out the background to put the spotlight on your subject.