Price drop! Amazon has the 100-Count Nature's Bounty Calcium Magnesium Zinc Supplement on sale for $5.84. Change to quantity 2 for $11.68  - 30% off coupon (check "Save an extra" box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel anytime) - $5.84 off multibuy discount = $3.51 with free shipping on $35+ or with Prime.