Mark my words: the open-toe mule will be next season's go-to shoe. Retro in spirit, the shoe looks edgy and modern with everything from jeans to dresses to skirts. The low block heel means they're also comfortable. Consider these spring-ready lovelies from Gucci (I have and love these!), Tory Burch, Loeffler Randall, Givenchy and Marayam Nassir Zadeh (above).