My zoom lens (75-300mm) is fairly slow: 5.6 at its farthest point. (I think it's 3.5-5.6, and it's not image stabilizing. I'm on a budget, sadly!) Unfortunately, my primary use for it is hand-held shots: sporting events, etc., where a tripod or even monopod isn't viable.
Add to the mix that I have shaky hands, and because what I'm usually shooting with it is in motion, I'm using the AI Servo auto-focus motor.
What are some techniques I can use to improve the quality (specifically sharpness and focus) of shots I take with this lens, when hand-held? (More generally, what are some techniques all of us can use to improve image quality and sharpness when shooting hand-held?)
If it helps any, I'm using a Canon XTi body.