Thumb Score: +7 Amazon [amazon.com] has 1-Gallon Spectracide Ready-to-Use Weed & Grass Killer for $6. Shipping is free with Prime or on $35+ orders. Price: $7.84 lower (57% savings) than the list price of $13.84 Deal history:[LIST][*]Frontpage Deal at $6.95 with +24 Deal Score and 28 comments.