I'm not sure where to put this thread, but in the room where I work on my PCs, I have a humidifier which I keep running until the room humidity is about 60%. Now at my workspace I have an anti-static mat with an alligator clip and it sits on top of a portable plywood and vinyl desk with metal and plastic wheels. The desk has two open shelves built into it where I keep all my papers, plastic, metal, objects and other things. When I work on a PC I put it unplugged, lying on it's side on top of the antistatic mat on the desk, put on an anti-static wrist strap, keep one hand on the case metal at all times before and after I open the case cover, attach both the alligator clip from the anti-static mat and the clip from my wrist strap to the case metal. Then I work on the pc using a mainly a magnetized screwdriver and other tools. Sometimes the clips from the anti-static mat or strap clip off the case as I work on it. But I guess i'm still safe from generating static since I'm still touching the case? And I suppose it does not matter when I have two PCs on the table with both the strap and mat clipped on either PC, or have the mat clipped to the first PC and the wrist strap clipped to the other? Also, when I'm moving around my desk while cabled to the case I still won't be able to build up static? Oh and one more thing - some of the PCs in my collection are not covered up in the front by bay covers or optical and/or disk drives. Would they be safe from static as long as I don't touch the open parts of the case as I transport them? Sorry for being so precise and repetitive about this, I have to make sure i've provided every detail.