Amazon offers the Covergirl Lashblast Volume Mascara 0.44-oz. Tube for $5.06. Clip the $3 off coupon on the product page to cut it to $2.06. Plus, Prime members qualify for free shipping. (Non-members can spend $35 to qualify for free shipping; otherwise, it adds $5.48.) That's about $5 less than you could expect to pay at your local store. It features a no-clump brush and purports to be hypoallergenic.