I recently signed up for a library card. It’s a really easy process with NY Public Library – you just sign on the website, fill out a short form, and they send you your new card. But along the way, they show you their backside.
What do I mean? As you type in your name, the NYPL system automagically capitalizes every letter you type. Presumably this isn’t for the user’s benefit, but for their backend systems. This is the type of tiny detail that makes a difference. If you need to convert data like that, do it when the user won’t see it. It’s the polite thing to do, right?