Been using X-Ways Forensics for a while now, have ya? Been to an X-Ways training class? Then consider getting certified by X-Ways as an expert (X-PERT) in XWF.
Be sure to set aside time, have your XWF Guide at your side, and dive right in. It's a real forensics exam that if you pass, have a certificate that actually means you know what you are doing with X-Ways.