  Measured transport properties of three representative cuprates are reproduced
within the paradigm of two electron subsystems, itinerant and localized. The
localized subsystem evolves continuously from the Cu 3d$^9$ hole at
half-filling and corresponds to the (pseudo)gapped parts of the Fermi surface.
The itinerant subsystem is observed as a pure Fermi liquid (FL) with
material-independent universal mobility across the doping/temperature phase
diagram. The localized subsystem affects the itinerant one in our transport
calculations solely by truncating the textbook FL integrals to the observed
(doping- and temperature-dependent) Fermi arcs. With this extremely simple
picture, we obtain the measured evolution of the resistivity and Hall
coefficients in all three cases considered, including LSCO which undergoes a
Lifshitz transition in the relevant doping range, a complication which turns
out to be superficial. Our results imply that prior to evoking polaronic,
quantum critical point, quantum dissipation, or even more exotic scenarios for
the evolution of transport properties in cuprates, Fermi-surface properties
must be addressed in realistic detail.
