Changing a name is one court order and about thirty subsequent errands, and the errands are where the difficulty actually lives. This article explains how a name change petition works, what a judge is really screening for, and why the order is only the beginning. It follows a hypothetical petitioner through the sequence that matters, showing why doing the agencies in the wrong order produces months of rejected applications. It explains the publication requirement and the circumstances in which it can be waived. It covers gender marker changes, which follow a different and less uniform path than name changes. It addresses the records that are hardest to fix — old employers, professional licenses, credit files, and school transcripts — and the ones people forget entirely. It closes with the mismatch problem, which is what makes an incomplete change actively worse than no change at all.