Many drummers like to warm up and practice with rudiments to keep their techniques clean and dynamically sound. If you don’t practice the rudiments or have never learned them – well, you really probably should! Here’s one of my favorite videos about drum rudiments, I hope it stays online for a long time to come. This guy does a great job here of clearly explaining each rudiment technique, showing the technique on-paper, and demonstrating how to play each of them.