I have an office where I am blowing the fuse from time to time. I want to see if I can run my 110V air conditioner on the 220V outlet in the office that isn't being used for anything. I understand that there can be some problems with frequency when doing this type of thing, if you are trying to use a monitor or TV or something, but I am just hooking up an air conditioner. Someone told me that I could just rig up something by leaving one of the 2 live prongs out, and wiring it to a normal 110v plug. Is that true? Otherwise, where could I buy something that would do the conversion? I saw this site: http://www.voltageconverters.com/voltage_converters.html, but it looks like there is no plug for fitting into the 220v outlet, which has one of the prongs at a perpendicular to the other, as opposed to both being parallel. Any thoughts?