2) Скорее всего, вы уже сталкивались с согласованием времён и успели заметить, что временные формы глаголов в главном и придаточном предложениях должны соответствовать условному правилу "-1 шаг". То есть, сопрягать простое прошедшее и простое настоящее, например, не рекомендуется.

🤷‍♀Как же тогда быть вот с такими пассажами?

Among those who have cut down on daily showers, baths or hair-washing were a woman who swipes a sliced lemon under her armpits instead of deodorant, another who uses baby wipes to freshen up after her lunchtime runs, and a salesman who shampoos only once a month and gave up anti-perspirant for three years.

🔺Или вот такой:
Last year, a poll for tissue manufacturer SCA found that 41% of British men and 33% of women don't shower every day, with 12% of people only having a proper wash once or twice a week. Around the same time, research by Mintel found that more than half of British teenagers don't wash every day – with many opting for a quick spray of deodorant to mask any stink.