Just got turned onto lucid dreaming by Exploring the World of Lucid Dreaming by Stephen LeBerge, and although I have only had two, I think I am going to love it. I believe I have had lucid dreams before, but it hasn't been until recently, when I started writing my dreams down, that I actually remember the ephemeral things! I'll start a workbook soon, and hopefully we can all work together to ramp up our lucid dreaming capabilities.