Ever have those dull lifeless images? Oftentimes this is the result of low contrast or lack of a good black point in the image. In the film darkroom it was important to have a print that had a black and white point. In other words a place on the print that has absolute black and absolute white. This creates contrast and results in an image with a good range of tones.
Not all images will have an absolute white or black point but most images will. So when your image looks flat and lifeless try this tip in Lightroom to boost the contrast and set the black point:
Under the basic tab go to the black slider. While holding down the Alt key AND left clicking on the slider the image goes white. Now move the slider slowly to the right until you see an area of black appear. Release the Alt key and see what the image looks like. There should be a definite increase in contrast which gives the image pop and will give more saturated colors.
These examples are from a hazy day shoot in Palouse, WA. The first image is flat but once I adjusted the black point the image has good color and life again.