-Weird knit caps for newborns.
-A photographer's website that says they have a special "eye" and a "unique" style...and every other shot is a couple on railroad tracks, standing in the middle of the road, etc. Did everyone go to the same class and/or seminar? (Thinking about it, they pretty much did.)
-Photographers whose website blog says they are "stoked" about a photo session with a client. It doesn't impress anyone when you say the same thing about every client. Of course later we learn that they were a "special" client and the session was either "awesome" or "killer", and if they were super special, it was an "awesomely killer" session.
-Describing a photo as "awesome"....especially an overly done HDR.
-People telling me they have a better photo of something...because theirs is in color (yet, it is almost always blurry and overexposed, but it is in color.)
-People telling me I need to dump my prime lenses and get a 70-200mm 2.8L because it's the sharpest lens Canon makes, and it's white, so people will know I'm a professional.
(I guess my biggest pet peeve is anyone using the word "awesome".)