(1) Log time from brakes-off to brakes-on.
(2) Record and pay whatever is the deal with the aircraft owner.
(3) Log "sole reference to instruments", the time which was by sole reference to instruments. And IFR similarly.
I've never found keeping track of those several numbers particularly problematic. I'd venture that if anybody else can't, they probably are a bit intellectually challenged and shouldn't be allowed out of the circuit as they may not have the capacity to work out time, speed and distance either.