I'll spend most of the weekend studying in preparation for the interview. Also, another employer has expressed interest in me. They gave me a take home test of science writing and presentations, including a PowerPoint preesentation. I told them that I'm fluent in PowerPoint, but, truthfully, I've never used it. One of my violin students, age 10, uses PowerPoint routinely for his homework, so it can't be too hard. I'll go get a book on it today and carry on.