going to bed so speedy reply but basically: first decluttering, then everything having a place, cleaning little and often and for short bursts, set routines for morning and evening, a different zone per day etc etc
they bombard you with loads of e-mails if you join directly so perhaps best to follow flying threads on here
basically - you don't get stressed because you know each zone will get done in time -
you start your day knowing what you have to do in a limited ring-fenced time (as little as 15 mins in some instances) all planned out day before so you have none of that demotivating "I'm so overwhelmed I don't know where to start" feeling
also, one of rules is you always have a shiny kitchen sink, and you get dressed from head to toe with make-up, including shoes, first thing in morning ... thus (so the theory goes) eliminating enticing slob activities/tendencies ....
check out the site www.flylady.net