Amazon has the 0.09oz Adams Plus Cat Flea & Tick Spot On Treatment for $5 - $1.50 off coupon (check "Save an extra" box, eligible on first S&S order for this product) = $3.50 with free shipping on $25+ or with Prime (extra 5% off with 5 items S&S order). Actively kills adult fleas, flea eggs, flea larvae, deer ticks, and mosquitoes for up to 1 month.