Update [4/13]: Price is now $1.54 after two S&S discounts and 39 cent coupon.

Amazon has a 3-pack of the Chapstick Classic Skin Protectant Flavored Lip Balm Tube with SPF 15 (Original or Cherry/Strawberry/Spearmint) for $3.23 - 25% off coupon (click "Save an extra" box) - 5% off with Subscribe & Save (can cancel anytime) - $0.75 off at checkout = $1.50 with free shipping on $25+ or with Prime.

Also available in Classic Original, Classic Cherry, Cake Batter for slightly more.