Kim Harrison's Hollows series is probably one of the best series I have ever read. So far there are 9 books in the series and I read them all this year. I finished the last one around June and I'm slowly dying waiting for the 10th one to come out in February.
The series is about a witch named Rachel Morgan, that gets into more trouble than you could possibly imagine. Between angry bosses, werewolves, manipulative elves, a vampire roommate, and a conniving ex boyfriend. Rachel is always running or fighting someone usually with the help of Living vampire Ivy, and always good for a laugh, Jinx (pixy). Rachel is one of the most interesting and well developed characters i've read about in a long time. The books are all fast paced and there is rarely a dull moment in all 9 books. The endings almost always leave you begging for more too.
I highly suggest everyone check it out. The first book is called Dead Witch Walking.