Like many people (I think) I tend to alway reach for the same clothes in my wardrobe - things which are easy tower, go together, etc. This means that I probably wear only about 50% of the things I own.
I hate clutter so I regularly try to get rid of things that I don't I will wear again but there is often a little voice holding me back - "what if you need this item in the future...", "this is actually really nice, you should try wearing it" (but I never will....)
Convince me to apply the 12 month rule - if it hasn't been worn, it should go!!!