No one wanted to clean in Slender Mansion. That part was obvious. Items were thrown around, trash left on the floor, dust bunnies everywhere, it was a mess. Slenderman saw this too, and implemented a chore program, where you'd have to do certain things to keep the mansion clean.

You and Jack had been given cleaning duty. You stood in the living room, him picking trash off the floor while you dusted the furniture. "Disgusting." He grumbled as he kept tossing stuff.