There was a couple other threads about the duration to keep spices, so I like to take this a bit further. How long will you keep your dried ground spices before you decide to toss them and get new ones? 1 year? 3 years? 10 years? I suppose this can be different for different spices.
In addition, I believe whole spices (unground) can last much longer. Most of my spices are whole spices, and they to be fine for 3 years without any noticeable change in favor/fragrant. What do you think think?