I usually wear the same thing, mainly cause I either forget to change or can't be bothered to when I got too many clothes to choose from. I am trying to change my clothes though. XD
At the moment though I have a QR code dress on.
I usually change every month, sometimes more depending on if I obtain something nicer. I try to keep it season appropriate too (long sleeves, no shorts in winter. no long sleeves in summer etc).
I switch between various QR outfits when I get bored(there just aren't many nice goth clothes in AC), and I change my accessories to match. I rarely wear the in-game clothing, although I still buy them for cataloging purposes.
I usually just change with the seasons but if I get really bored at looking at the same outfit I'll change it sooner. I use qr codes because I have yet to see a decent piece of clothing in this game.
I change my whole outfit and my hairstyle/color every month if not more. It's when I find a cool accessories, currently in obsessed with the little crown. So I have like a queen look going on. Blue hair blue dress.
I tend to change clothes fairly often since there are so many cool outfit possibilities! It's refreshing to find new clothes to wear.
I used to change my hairstyle often too but right now I'm not planning to change for a while as I'm really content with the current style.
i don't change my clothes daily. maybe once or twice a week. if my lucky item isn't too specific (like if it's "long sleeved dress" or just "dress") i usually change my clothes to accommodate that too.