I have done that when I was too lazy to pick out something to wear Shabbos morning. And luckily I was also too lazy to hang up my stuff from the night before. But I usually don’t. Most people don’t.
My high school give out this poem every year before school shabbos:
The Plain Campaign:
Join our campaign
Please dress plain
It’s not the outfit that amount
But the person that counts
So reduce all the stress
And simply dress less
And on Friday you’ll see
How simple you can be
You’ll look very nice
If you wear your skirt thrice
Just vary the shirt
And please avoid dirt
Remember, there’s nothing wrong
With a skirt that’s properly long
But there’s something not right
With a skirt that’s too tight
So straighten your priorities
And wear a big smile
And then, School Name Here
You’ll really be in style