Getting the Walls Spotless
You’ll need to get out that new paint roller, but you’ll also need to do preliminary work on the walls. You’d never think of giving your walls a decent wash, no matter how clean your house is? But that is exactly what you must do. A quick wipe-down of the wall you’re about to paint is far simpler to deal with than the dirty, bumpy mess you’ll otherwise have. With a Swiffer stick and a damp towel attached, you can get that job done.
Source: Driven by Décor
While there is no one-size-fits-all solution for cleaning walls before painting, most walls can be cleaned with just a cloth or sponge and warm water. Wash the surfaces that have been exposed to oil or filth, especially kitchen walls, with a solution of water and grease-cutting detergent. Then rinse with clean water to eliminate any cleaning agent residue.