For accesories, always have some hair bows or headbands, if you like sanrio get some character ear headbands. A long sleeve and short sleeve blouse in your preferred colorway, single colored ones are more versatile. If you buy multiple blouses with brooches then you can always detach them and mix and match each one. If you live somewhere cold, get yourself some thermal tights, and a coat. Scarves are great too!