surely wfp cant be that hard to master.surely a ladder monkey like me could get the hang of it in a few weeks??

scrub frames(esp tops)thoroughly/quick scrub on the glass
go back to the first window when water stops dripping off the frames/concentrate on the glass SCRUB/RINSE WELL
FINALLY a sweep of the sill with the brush and then NEXT WINDOW!AND SO ON AND SO ON!!
WATCH OUT FOR VENTS AND DONT CLEAN INSIDE THE VENT!(JUST THE TOP OF THE VENT!)
CAREFUL YOU DONT SPRAY THE SIDE WALLS WHEN RINSING THE GLASS.
HYDROPHOPIC/HYDROPHILIC GLASS.(RINSE BRUSH ON FOR BOTH)
WATCH FOR RUNS IN THE MIDDLE OF TOP OPENERS
CLEAN TOP FRAMES ESP THE TIME BEFORE CHANGEOVER WITH A DAMP CLOTH.
USE GG3/4 INSTEAD OF FAIRY 4/5 MONTHS BEFORE THE CHANGEOVER
TRAD OXIDIZED FRAMES/WINDOWS/CAREFUL ON OLD LEADED/FLAKEY WOODEN WINDOWS