Today I'm sharing an image taken in Lisbon. It's HDR merged from 3 RAWs and processed in Photomatix Pro 4.2 beta. This photo would be pretty boring but the reflections in the window glass, car bodies and railway come to the rescue.
I used CPL (Circular Polarizer) filter for this photo to enhance reflections... hey, stop for a second. Enhance? Yes, that's right. Although most of us use CPL filters to cut down glare in the scene it can be also used to increase it... by spinning in the opposite direction. Simple as that and sometimes very useful.
I took another photo to illustrate this concept... well, that's an extreme case :) in the photo below the reflections are so strong that they are almost unrealistic.