The '3rd shift' sees women burdened with buying gifts for kids' parties, booking appointments, and countless other 'little tasks.' Sick of worrying, women in Iceland are fighting back.

• The phrase "we need to get your mother a gift" says a lot about women's equality in Iceland.
• The "third shift" refers to the mental load women and non-binary people take on related to planning their households.
• It includes remembering school meetings, booking their children's dental appointments, and organizing celebrations.

Birna Hrönn Björnsdóttir's favorite sign at Iceland's women and non-binary people's strike in Reykjavik was short and snappy: "We need to get your mother a gift."

"It was simple, but so effective," Björnsdóttir, the co-founder of LGBTQ+ travel and wedding-planning company Pink Iceland, told Business Insider.