It's our understanding that you have to have either a passport or your birth certificate & id for certain stuff like registration. Does having the passport save you any time - i.e. enough time to justify the expense of acquiring one if you don't have any future plans to leave the country? (Though after going on our first Disney cruise, we may be doing it again sooner than we think!
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Is it a big deal if your birth certificate has your maiden name and your id has your married name? Is a marriage certificate required?

Is it a big deal if your birth certificate has your maiden name and your id has your married name? Is a marriage certificate required?