Job Interview, Resume and Cover Letter Tips

[natshar]

Any good job interview, resume and cover letter tips? I'm not talking generic obvious stuff (dress professionally for an interview, don't use comic sans on resume, show up on time, etc.) I want to know things that aren't so obvious.

Anyone who has worked in HR or knows a lot got any tips and tricks for job interviews and/or resumes and/or cover letters? 

Or bad stuff that everyone does that should be avoided?

Again I'm not looking for the basics, I'm looking for advanced stuff here, things most people might not think of.

Is anyone willing to share any top secrets?