Walmart offers the RL Flo-Master 1-Gallon Economy Sprayer, model no. 1401, for $5. Opt for in-store pickup to dodge the $5.99 shipping fee. That's tied with last week's mention as the best deal we've seen, and $4 less than the lowest price we could find for a similar item sold elsewhere. It features a poly wand and nozzle, adjustable spray pattern, and a pump handle.