So I'm thinking of re-painting my bedroom wall in some colors, and I gathered some info about how to do it lately. It says that I should sand off the surface before I paint it.
I just wanna ask that do I reallyneed to sand the whole old paint of the wall off so the new paint will stick in. It seems like a lot of work to do = =!!!, what about just clean it all up with some clean damp cloth and paint it?
If you guys have any advices or suggestions you would like to tell me, please do. I will love that