My "serious" (BWAHAHAHA! Well considering it's XF slash!) works are Folie A.D. (in progress) The Library, and Ferotica. Also working on an Unredeemed!Krycek and Skinner piece.
My longest humor pieces are "TowelFic" and "Be Careful What You Ask For", the latter a work in progress. The first one people love or hate, literally!
I've written several vignette/double drabble type stories, which include "In Your Dreams, Honey", "Skinner's Animal House of Pain", and "Sister Act", "A Shipper's Arcadia", "There's Always Hope for Everyone: Redeemed!Krycek", "Reflections of the One Closest to Mulder Parts I & II," and "Scully Finally Gets Mulder and Skinner to Respect the Scientific Method of Investigation" .
What I would recommend you read for the purposes of this chat: Towelfic and Sister Act. Those are the ones people seemed to have enjoyed the most. The links for most of my humor stories are below.
http://dspace.dial.pipex.com/min/other/OTHER.SHTML