Since we’re talking shoes, I absolutely need to mention a life-saving little trick. A tiny leather antislip plaster does wonders. It holds your shoe in, your heel doesn’t slip anymore and the shoe doesn’t hurt hour heel (especially if you’re wearing new shoes). The best part about it? It’s really cheap (3€) and you can use them with any kind of shoes (apart from flip flops, hehe)
PS: I do not recommend the silicone ones.
Clear skies,
Silvia