A product I want is out of stock, is there a way I can be notified when it comes back in stock?

You can set up an email notification following these steps: 
1. Go to the product page (www.5percentnutrition.com -> Search for desired product and click)
2. Click on the red Sold Out! button 
3. Enter your email address and hit submit
4. All set! As soon as we check the product into inventory, you will receive an email!