What are you hanging onto that you have not used in a year?

If you do not use something for a period of one or two years, should you recycle or donate it?

Expired stuff? Durable goods just not needed? Consumables in your kits? Stuff you intended to learn how to use but did not? Extra stuff that seemed like it might come in handy but hasn't yet?

What is your take on reviewing all your surival stuff and refreshing the contents of your various kits?