Big plastic box. Revolutionized my life.
First of all, take box around the house and hunt down any dirty washing. Also strip the beds. The last room you visit should be the room where your laundry basket is. Transfer all dirty clothes to laundry basket, take laundry basket downstairs and stick in the washing machine. If it's not a full load, don't switch it on yet. If it is a full load, switch it on immediately and any extras stay in the basket for now.
Start in 1 room and anything that doesnt belong in there, add to your now empty box. Once tidy move on to next room. Decant anything in plastic box that belongs in new room out, fill back up with things from new room that shouldn't be there. Rinse and repeat until you've done the entire house. Anything left in the box at the end gets chucked or, in rare cases, found a new home.
Then once your box is empty, fill box with the cleaning products you need. EG: All purpose surface cleanser, bathroom spray, toilet cleaner, bleach, floor cleaner, carpet cleaner etc etc and then all the cloths you'll need. Attack house without mercy from room to room until you've wiped, rinsed, polished and scrubbed everything that needs it.
Decant box contents back into cleaning drawer. Throw dirty cloths in laundry basket.
Vac throughout, then steam mop hard floors. Bung mop heads in the washing machine.
Box also becomes a useful step up to reach the top of kitchen cupboards and curtain rails if you're doing a deeper clean 
I have 7 rooms and a stair case, whole process takes me about an hour and a half and I do it once a week :)
I then spot- clean daily which takes 15 mins tops :)