title: WCF - To Use [DataContract] or not with .NET 3.5 SP1?
body: <p>I am working with WCF .NET 3.5 SP1 and have read that one does NOT have to decorate their Entities/Collections with such things as [DataMember], [DataConract], and/or [Serializable]?  What is the best way to go?  What have you all encountered?</p>
  
  <p>I am on 3.5 SP1.</p>