1. The Classic Cat
When it comes to low-effort Halloween costumes, the cat is a timeless winner. It is easy, flattering, and instantly recognizable. All you need is a black outfit, a pair of cat ears, and some simple makeup.
Start with a black dress, black jeans and a tee, or a bodysuit—whatever makes you comfortable. For the finishing touch, draw on a small nose and whiskers using eyeliner. You can also add a choker or a tail if you want extra flair.
This costume works because it is minimal but stylish. It is perfect for last-minute parties, casual gatherings, or when you want to look cute with very little effort.

You will need: Black clothing, cat ears, black eyeliner, optional tail or choker.