Thrust on landing
So far no has mentioned the type on engine.
On the older non by-pass engines - DC-9, B727 etc removing the thrust too soon would cause early deceleration and maybe a hard landing.
Not so with the newer large N1 by-pass engines.
The fan produces 75% of the thrust and is free turning (no gearbox to restrict it). Closing the thrust lever slowly at 50 ft has less effect on the N1 fan so there is sufficient residual thrust to prevent rapid deceleration, hence a good landing - just like the auto pilot/auto thrust. Close it at 10 ft and you'll burn up a lot more runway. If you don't need it, don't use it.
Thermostat.