I prefer to wear a festival belt these days. It’s basically a feminine belt with pouches large enough for my phone, keys, ID, cash, credit cards, sunglasses, and minimal makeup. It keeps my hands free and I don’t have to worry about a purse. I love traveling light.
When the occasion calls for it (usually involves stilettos), I have a fairly large shoulder bag. I can carry keys, wallet, phone, sunglasses, spare panties (you never know), plenty of makeup….and most importantly….a pair of flats.