I also use the microfiber cloth (bought at Guitar Center) to regularly wipe the guitar down after use. Periodically, there will be an oil residue from hands and fingers that the microfiber cloth just moves around instead of removing. At that time, I will lightly dribble a just a little bit of soapy water onto a moist cloth (I run some warm water over a bar of Ivory bar soap onto the cloth) and go over the whole body, little parts at a time. I immediately use a second cloth moist with water only to wipe off the slightly soapy water and follow up with a flannel cloth to dry. This does a nice job of removing the skin oils. Once a year I will use the Turtle Wax Express on the guitar.