Pottery Barn takes an extra 10% off orders of $100 or more, 15% off $250 or more, 20% off $500 or more, or 25% off $1,000 or more via coupon code "FIREWORKS" during its 4th of July Sale. Even better, this stacks with sale items, already marked up to 70% off. Plus, the same code nets free shipping. Some exclusions apply, including furniture and clearance.