We have all done it, texting or surfing the internet while driving.
This is a great video that I think everyone with a cell phone should watch. Even if you already have a system for preventing this (like putting the phone in the back of the car for example), it is useful to be aware that there are a lot of irresponsible drivers out there texting/surfing the internet while they drive.
I used to be ok with using my phone at Red Lights, but now believe that this is also probably a bad idea because it conditions the habit of using the phone while driving. If it’s an emergency, pull over and make the call / text. Whatever the message is you need to communicate, it can wait.