Let's be clear. Miranda could wear a garbage bag and it would look amazing. But she doesn't wear garbage bags (at least not yet) and she likes to dress up, even whilst wandering the streets of NYC in a stinky hot summer.
She's always "finished". You know, there's a bag or a hat or in this case, both, to complete her look. It's never just jeans and a tee - there's more. Something to think about the next time you throw on your casual Sundays.

I like the way she's rolled the sleeves of a long sleeved silky top, toning the whole thing down, even though she's wearing platform heels. Wide-legged pants need heels ladies - never go without them if you're choosing a wide leg.
Again, the bag completes the look. You'll never see her throwing a heavy tote over her shoulder, even though this bag looks seriously heavy. It's much more chic to carry it in your hand or at worst, on your elbow.