We love to use these linen Kiva bins from @thecontainerstore in primary closets as they usually fit perfectly on built-in shelves and provide sturdy plus visually-pleasing storage for things like extra sweatpants, t-shirts, jeans, socks, etc. You name it - we've put it in these bins! The solid fronts are good for keeping contents concealed and creating a more cohesive look, but we solve the 'what did I put in here?!' problem by using our favorite clear bin clips from, you guessed it, The Container Store. We print a label describing the contents, stick it onto the bin label, and clip it to the front of the bin. It's as simple as that!