I periodically open my mailbox and find copies of nifty stuff from publishers asking me to review new and upcoming titles. A lot of times I don’t get a chance to do it, because I’m writing my own stuff, and I have a personal policy of never reviewing someone else’s material when I’m working my own. However, right now I’m in the middle of a very brief lull, and so I thought I’d share a few reviews with you over the next couple of weeks. I’m going to begin with Wicca, Plain and Simple by Leanna Greenaway, because I really like it. Wicca, Plain and Simple, from Red Wheel/Weiser, is just…