The only thing that I try to consume within the year is homemade jams. They really do start losing quality after a year- but we'll eat them much longer if we have them. Once they hit the three year mark though, then I consider them toast. If you know anyone who baits for bear hunting- old jams make great bear bait.
They are about 8 dollars for a dozen and 5 dollars for 1/2 dozen. They are about 8 dollars for a dozen and 5 dollars for 1/2 dozen.
It depends on where you buy them, not only the store, but the city. Also, different varieties of donuts can change the price as well. About 5 dollars is the normal price for a dozen at several cheaper places, but some of the more expensive might charge 8, 10, or even more for one dozen.