Amazon offers its Prime members the 3M Ultrathon Insect Repellent 6-oz. Spray
for $7.49. Clip the $2 off coupon under the product information to drop it to $5.49
. With free shipping
, that's the lowest total price we could find by $5. (Non-members can get free shipping with orders of $25 or more; otherwise shipping adds $5.58.) This spray is splash- and sweat-resistant and provides eight hours of protection.
Amazon Prime membership is $79 per year; however, Prime is free for college students for six months, and free for parents and caregivers for three months.