I'm loving BJJ, but unfortunately, my schedule only permits me to go to class twice a week or so for an hour per class. During that hour, it feels like I learn a whole lot of new techniques, but once I leave, I have a tendency to forgot them unless I have the chance to use them again later that week. Does anyone happen to know of a good set of instructional DVD's (or Youtube videos) that collect instructions on beginner techniques (basic key locks, arm bars, kimura, guard passing, sweeps etc.) that I could use to study in between lessons to keep them fresh in my mind? Thanks!