No one likes job hunting. Scouring through online jobs boards, spiffing up your resume, prepping for grueling interviews - none of it's fun. But perhaps the most challenging part of the process is writing an effective cover letter. There's so much conflicting advice out there, it's hard to know where to start. As anyone who's ever written a cover letter knows, it's not easy to do well. Here's how to give hiring managers what they're looking for.