It's amazing what you find in your pantry.Dessicated leeks for example. Okay, you probably don't find those hidden behind the vegetable rack in your pantry, but you may find old spices. Ah, yes, I see you nodding.
Amazingly enough my collection wasn't too hideously out-of-date. Not once I'd decided I'd keep pods and seeds not more than 2 years past their Best By date, and anything I'd used recently even if it were old. I did throw away the chili powder from 2001: I can't imagine how the bottle lasted that long as it is one of the spices I use regularly. It must have been hidden away at the back. Stock rotation doesn't rank highly in my Must-Do list.
I'm keeping the tabasco sauce that is about 4 years past its Best By but that's because I don't believe anything could happen to tabasco to make it inedible.
P.S. Yes, I do know spices should be freshly ground else they very rapidly lose their flavour.