It's easy to immediately start copping next level pieces and filling up your closet with crazy shit, but these won't do anything for your style if you don't have a strong foundation to build upon. If you just made the commitment to try and up your steez, then make sure you have your bases covered. They may be "boring," but sturdy chinos, plain shirts, good denim, and a few reliable T-shirts will make a solid backbone of a wardrobe that can grow into something awesome and unique.