2.) Dangling participles and dangling phrases (absolute phrases?) starting sentences. For example: "Hot and wet, she climbed on top of him..." Not an exact quote, but close enough.
3.) I'm getting a little tired of werewolf stories, but if I didn't do them, I wouldn't have a whole lot to proofread or edit.
4.) Characters randomly having sex with no rationale whatsoever. I do count "I feel horny" as a rationale, so it's not like I'm being horribly picky here.