Buy the 2015 Old Farmer's Almanac!
Burpee's has seed potatoesBurpee's has seed potatoes online, or you can find them at Walmart, Lowes, Home Depot, etc in their garden sections early in the year.

2015 Special Edition Garden GuideCooking Fresh with The Old Farmer's AlmanacThe Almanac Monthly Digital MagazineWhat the heck is a Garden Hod?