spring cure don't forget about the home theater. Because of the nature of the equipment however, you need to take a little bit more care than when your are wiping down the kitchen countertops.
Don't use Windex on an LCD TV. Plain water and a cloth for cleaning eyeglasses will suffice Don't use a silicone based cleaner like Pledge on wood speakers. In this case Windex is actually recommended Wipe down DVD players, amplifiers, receivers etc with a clean dry cloth. Don't use any cleaning fluids as these can get into the device and short out the circuitry
Sound and Vision Magazine has a good overview of what you need to watch for.
Read the full article here.