Yes, herbishh.com does offer site-wide discount codes. The best available code is 'IAMMIREELLA' for 20% off. Another code is 'KATEY10' which offers 50% off. There are also codes like 'jhawk90' and 'MONICA10' that provide a 10% off discount. Please note that these codes may have certain terms and conditions for their usage. It's recommended to check the official website for the most accurate and up-to-date information.