I put this off as long as possible (and actually a little too long because we got a ticket) but we finally had to change our plates from Pennsylvania to Oklahoma last week.
I don't know why I was so attached to those yellow & blue pennsylvania plates, but I did not want to let them go. Not only are the Oklahoma plates unattractive, but it seems so "official" now that I live in Oklahoma, and all of a sudden, I think I am a little homesick. (most likely it's the heat, though.) Fortunately I didn't have to surrender the cool PA plates to the tag agency (like how they meanly took my PA driver's license. jerks!) and now we get to hang them proudly in our garage.