I could be totally off base but... if you're vacuuming everyday, then it would seem logical that it'd look the same the next day as it did the day before, before you vacuumed, because everyday, you're vacuuming a day's worth of stuff. Like if you only cleaned once a week, you wouldn't wake up the next morning to the week's accumulation, just a day, so it would seem cleaner longer. Does that even make sense?
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