Thu, 02/01/2024 - 05:15 Tech Insider Retired pharmacist Bernadine Swale has traveled worldwide, house-sitting and taking care of people's pets.Bernadine Swale Tags Careers, as-told-to, contributor-2024, AirBnB, Retire, retiree, house-sitter Source I retired and now travel the world living in people's houses for free. I can't…