In January of 1363, the first recorded sumptuary laws were enacted in England. The laws aimed to restrict what people could wear, eat, and purchase based on their class or station. It's purported that the laws were both religious and secular and had a disproportionately harsh impact on women and people who were poor. Go figure! So this spell is about thumbing your nose at the various authorities in your life seeking to control you.

There are multiple ways to do this magic. I'll give you one primary example and a bonus example, and you run with it from there. Fix your hair the way you adore. Wear those heels, those sneakers, that dress, that beloved concert T-shirt from that one band no one else likes, those leather pants, or whatever you have that best expresses who you are (or want to be). If you can, wear them out proudly. If that's not an option, parade around in private, saying repeatedly:

You're not the boss of me!

The alternate version of this spell involves creating (or buying) the most sumptuous meal you can reasonably afford and savoring it slowly and purposefully.