Clean up the bathroom with me, tidy up the living room in 15 minutes or try this trick to make your bathroom tiles sparkle. Some 4 million videos on Tiktok are sharing these kinds of tips under the #cleantok hashtag. Lea de Bruijn, a 25-year-old from Germany, is among them, turning her passion for cleaning into a profession. She started sharing household tips on Tiktok around a year ago. “People enjoy watching these videos,” she says. “The videos also motivate them to tidy up when they might not feel like it.” Followers grow to trust the influencer, she says. “So if they recommend something, t…