Sub-anklets
Izzy was surprised to discover such things existed, but these “invisible” socks are a great solution for getting the sockless look in the summer without the chafing or blisters. (Yes, this is way off season, but Izzy is a sucker for a bargain.)

Those are a good idea! I wonder how they keep the heels from sliding down into the shoe. We women have been grappling with that for years.