Children Should Never Use Cell Phones: Barring a life-threatening emergency, children should not use a cell phone, or a wireless device of any type. Children are far more vulnerable to cell phone radiation than adults, because of their thinner skull bones.

Reduce Your Cell Phone Use: Turn your cell phone off more often. Reserve it for emergencies or important matters. In the case of the iPhone you should actually take the battery out as even when the phone is turned off it is actually acting as a transmitter for other iPhones and you essentially have a mini cell phone tower in your home even if the phone is turned off.

Use A Land Line At Home And At Work: Although more and more people are switching to using cell phones as their exclusive phone contact, it is a dangerous trend and you can choose to opt out of the madness.

Reduce or Eliminate Your Use of Other Wireless Devices: You would be wise to cut down your use of these devices. Just as with cell phones, it is important to ask yourself whether or not you really need to use them every single time. If you must use a portable home phone, use the older kind that operates at 900 MHz. They are no safer during calls, but at least they do not broadcast constantly even when no call is being made.
 
Use Your Cell Phone Only Where Reception Is Good: The weaker the reception, the more power your phone must use to transmit, and the more power it uses, the more radiation it emits, and the deeper the dangerous radio waves penetrate into your body. Ideally, you should only use your phone with full bars and good reception.

Turn Your Cell Phone Off When Not In Use: As long as your cell phone is on, it emits radiation intermittently, even when you are not actually making a call.

Keep Your Cell Phone Away From Your Body When It Is On: The most dangerous place to be, in terms of radiation exposure, is within about six inches of the emitting antenna. You do not want any part of your body within that area.

Use Safer Headset Technology: Wired headsets will certainly allow you to keep the cell phone further away from your body. However, if a wired headset is not well-shielded -- and most of them are not -- the wire itself acts as an antenna attracting ambient information carrying radio waves and transmitting radiation directly to your brain.

Make sure that the wire used to transmit the signal to your ear is shielded. The best kind of headset to use is a combination shielded wire and air-tube headset. These operate like a stethoscope, transmitting the information to your head as an actual sound wave; although there are wires that still must be shielded, there is no wire that goes all the way up to your head.