I’m looking for a cleaner to thoroughly wash a painted wall in my living room. There’s light dust and some smudges from kids, and I’d like a gentle but effective cleaning without damaging the paint. Please bring appropriate non-abrasive cleaners and towels. I’d prefer a mid-morning slot on a weekday, and I’d like a brief assessment before starting to ensure the wall surface is suitable for wet cleaning. If you have a steam or sponge technique that works well on regular emulsion walls, I’m open to your advice.