Yes, BSTN does offer site-wide discount codes. The most common discount code is BSTN50, which gives customers 50% off at BSTN. Additionally, customers can get a 5% off discount across the entire website by signing up for their newsletter. There's also a 10% discount available with the code EXTRA5. Please note that these codes are subject to change and may have certain terms and conditions. It's always a good idea to check the BSTN website or reputable coupon sites for the latest codes and deals. If these codes are not working or expired, it's recommended to sign up for BSTN's email newsletter to receive their latest offers and promotions.