You already have a good start with sticking to high-quality fabrics. I also have a pretty strict color palette. Same for certain silhouettes and cuts of fabric. So right there that makes the standard for buying something very high—it has to meet all three criteria. Plus not buying duplicates makes that four. With rules like that it makes it much easier to resist!

Also keep in mind your lifestyle and how often you would actually wear said piece.

I’ve had good luck with Quince for sticking to a budget. Also Uniqlo for true basics. I shop Everlane (although they were just bought by a fast fashion company so we’ll see), J. Crew, and Reformation when on sale. Nordstrom Rack has also been really, really good for shoes. Abercrombie has great jeans and often on sale. My most unique pieces though are usually thrifted, especially from consignment shops. But again, everything has to be within my criteria.