And, if you are also replacing carpet do that after painting. Just imagine, painting with a floor-to-floor preinstalled dropcloth.
Before I moved into the current house (1700 sq. ft)
Before painting day,
I had filled the little holes in the walls,
Painted a really good stain covering layer on, maybe called Zap? where needed
Put newspaper over the windows.
Covered all light fixtures.
Rented a scaffolding thing for the vaulted living room
Had 5 gallon buckets of white paint on hand, and paint for the three colored bedrooms.
My parents came over with a paint sprayer and we painted everywhere including the ceilings except for the closets and the laundry room.
We were done by 2pm, and ate lunch