For all of you locals, check out this great find from Knoxville on a Dime:
Now I know fireworks are not legal in Knoxville but I know people will be shooting them anyways. So here's a way to save $10.
Go HERE and fill out the form to get a coupon (via email) for $10 off a $50 purchase at TNT Fireworks. Out closest location is at: 140 John McGhee Blvd., Caryville, TN 37714, Phone: 423-566-7686