Amazon.com has 8-pack Duracell D Alkaline Batteries for $7.74 when you clip the $0.75 off coupon on item page and checkout via Subscribe & Save. Shipping is free.
* Guaranteed Fresh for 7 Years
* Mercury Free
* Made in the USA
Probably the best card to earn frequent flyer miles, the Starwood Preferred Guest® Credit Card from American Express gives you 10,000 bonus Starpoints after first purchase. This can be converted to $100 gift card. Earn one Starpoint for every dollar you spend. No annual fee for the first year; $65 thereafter.