RE: Landing Advice
As I think about this more, I think greasing it down the centre of the runway is the least important skill of all.
It is far more important to learn first principles: recognizing attitude, and knowing how an airplane flies for given attitude.
For instance, a good descent involves a decrease in power, and an increase in angle of attack. The craft slows, and you use throttle to adjust descent. Now, throw in the aileron to the low wing advice, and you have an adverse-yaw stall waiting to happen. Someone who wants to keep his airplane will never do anything but a co-ordinated turn in this circumstance: rudder and aileron.
I think a beginner should worry about attitude, not aim. Watch the descent, learn how the airplane reacts. Also, let it settle: if you have not changed the inputs, any hop or roll is probably just transient ground turbulence, and not a reason to correct. Worry about the steady descent.
Only after you understand attitude is it easy to aim.
Sometimes, we're so busy flying, we forget to watch. IMHO!