I do a list room by room of what needs to be done. I start from the top down. Ceiling fan, wall, window treatments, windows, base molding, carpets, etc. I clean that way too. If anything falls, it won't go on a clean surface. I usually take a weekend in April or May and send Bubbs away and then
DH and I (at least I try to get Dh to help) do it all. I like to have the windows opened, so we have a wait a few months here.