Shop Macys.com and get six pairs of panties from Vanity Fair or Bali for $33. Regularly, these would cost up to $12.50 per pair, so you can save as much as $42. Be sure to choose only styles that say "Buy 6 for $33" below the item price. If you mix in styles from other promos, your price won't drop. The pictured Vanity Fair Illumination String Bikinis drop from $11.50 to $5.50 each if you buy six qualifying pairs. Shipping starts at $9.95 or is free on orders over $75. Sales tax is charged in most states.