A photo session and 400 or 500 photos later… “Oh! I like that. Oops! I missed that. I really like that photo! This is portfolio material…” My first step after copying the photos from the memory card to the computer is to look for all the out of focus, the screw-ups, the person picking their nose. It's amazing what I get at 8 frames per second, the good, the bad and the ugly.
I also delete all the really ugly, the really bad ones like when the exposure is completely wrong, not even close and can't be rescued in Lightroom, the flash that reflects on a surface that I didn't expect to be reflective. I can already hear:
Check your LCD review
I rarely check the LCD playback for review. I use the LCD playback when using the flash during setup/testing, but in general I do not, because it interrupts the flow from my point of view and from the person that I make photos off.