Don't drive to your arraignment if your license is suspended
This seems fairly straightforward doesn't it. Don't drive to your arraignment if you have a suspended license. But it happens all the time. All the time. There are judges how have their security personnel watch the parking lot and take persons into custody who do just that. Nothing aggravates the judge more than saying "No I won't drive, your Honor, I swear!" and then going out and driving out of the court's parking lot and getting caught at it. This is a sure one way ticket to jail, and no one will feel any sympathy. Get someone else to drive you or take the bus!
Don't drink or take drugs before your arraignment
Again, you'd think that this was a no brainer, but you'd be surprised at how often this happens. Believe me when I say if the judge from the bench can smell the alcohol on you (which happens) you are almost guaranteed a trip to the jail to post bail. Marijuana too. And Meth. Most prosecutors and judges have seen more high people than you have even if you are a regular user. You are not going to fool them. Don't do it.
Turn off you cellphone and don't talk to it in court
Again, seems like a no brainer right? But for whatever reason people just seem to lose their minds when it comes to their cellphones. You don't have to answer your phone, and if you do, wait outside and have a friend wait for you inside. Turn off your phone when you get into the court! Oh, and this is for Judge Robertson in Federal Way Municipal Court, get rid of your gum too.
Finally, get an attorney.
Remember, if you get an attorney, he or she can waive your arraignment for most charges so you don't even have to risk these things if you get one early enough to waive the arraignment. This will help you out a lot and make your life smoother.