I'll finish cleaning the Kitchen

You grab your phone, turn on some tunes, and continue cleaning up the kitchen. Washing dishes, wiping the counters, sweeping and mopping the floor, and so on. In all, it took you about two hours to finish (or about halfway through your favorite playlist), but look at it now: this is the cleanest you've ever seen it. The damn thing looks like it did when you first moved in.

When you turn around, you can see that Erza already finished the living room. Much like the kitchen, if it wasn't for all of your stuff (like your furniture, computer, and TV) you would have assumed that you traveled back in time to when you were moving in. She even wiped down the sliding glass doors.