Amazon offers the Permatex Dielectric Tune-Up Grease 3-oz. Tube, model no. 22058, for $5.69. Order via Subscribe & Save to cut the price to $4.84 and bag free shipping. That's the lowest total price we could find by $2. It purports to help to prevent voltage leaks around electrical connections.

Also available is the Permatex Fast Orange Pumice Lotion Half-Gallon Hand Cleaner, model no. 25217, for $5.62. Order via Subscribe & Save to cut the price to $4.78 and bag free shipping. That's the lowest total price we could find by $4. It's fortified with aloe, lanolin, glycerin, and skin conditioners.

Be sure to cancel Subscribe & Save after your order ships to avoid being billed for subsequent shipments.