I've been cleaning up my key rings. I have two of them...one for daily keys, and the other for the rest of the house I also have a box of abandoned keys that I keep just in case...I'll be getting rid of that box. Just added the trailer keys to my rings
If you have any old "skeleton" keys, particularly iron, you can sell them or donate them to a thrift shop. People love those keys.
If you have no destination for unused (or mysteriously unmatched) keys, I'll happily pay shipping to have them. I lost my jinglecoat in the move to Colorado, and it's high time I rebuilt it. To be able to tell folks these are a Wookie's keys would be fun.
That totally works!