i started cleaning for pesach already although not any major areas.
If too uch gets left for the last minute, my adrenaline doesnt let me fall asleep at night until its all finished so id rather start early and keep a regular schedule.
Also, for those of us wives who work full time out of the house, we have to start early or else there will physically not be enuf time to finish the whole house!!
just let ur wife do her thing and maybe even offer to help out!!!