Note to the SCA world:
I have a day job, and so does everyone that lives in my house. We are not home to sign for your reservation form that you sent "Priority Mail". In fact, sometimes, we're on vacation. Do NOT send things we have to sign for, it's just silly. For goodness sake, it's not like you've sent us cash.
And don't get angry if your letter got returned because we weren't there. If you'd sent it regular mail, that never would have happened.