it's fairly aussie to live in thongs (sorry, can't think of them as flip flops - that to me conjures my son walking thru the house when he was like 4 or 5y.o in flippers when he was impatient to go swimming)
i'm not good at barefeet or just socks and i wear a cheap pair of thongs in the shower (i don't care how minimally people recommend packing for travel, a pair of thongs is a non-negotiable for me), but otherwise i'm all about arch-support thongs these days, i used to swear by Vionics brand but now i live in Archies in summer
Bonus fun fact: on Australia Day, as it is controversially called these days given Aust was already inhabited, it is quite common for community gatherings to have Thong Toss competitions (it's how it sounds, whoever flings a thong the furthest is the winner - it's a lot less risk than javelin or shotput!)