Sentence:  Back at the Factory-to-You with the other old maids , back there she was the youngest clerk and she was thirty-four , which made her young enough to resent the <WSD>usual</WSD> ideal working conditions , like the unventilated toilet with the door you had to hold shut while you sat down . 
Meaning of the word marked with <WSD> tags:  occurring or encountered or experienced or observed frequently or in accordance with regular practice or procedure