US passport

Summer is here. If you're planning to travel abroad, and already possess
a passport -- you may feel you need not worry about anything else. But
beware of the fact that some countries require not only a valid passport,
but one that will be valid for up to 6 months after you leave that country.

U.S. passports are valid for 10 years and you might not remember exactly
when your passport is going to expire. So, open your closet, look at your
passport and, if needed, apply for a renewal. Passport renewals can be
done either by mail, or in person at a passport agency.

Application by Mail: if you have an undamaged passport that was issued
to you in the past 15 years and you were at least 16 years old when that
passport was issued, and you still have the same legal name, you can
apply by mail. You'll need to send: (i) completed application form
(available here) (ii) Your most recent passport (iii) 2 color passport
photos taken in the past 6 months (iv) Fees for processing the application
($67), payable to the Department of State (v) If your name has changed,
you'll need to include a certified legal document specifying the change.

Apply in Person: If you do not meet the criteria to apply by mail, you must
apply in person. Also if you have lost or damaged your passport, or need
expedited service to receive your renewed passport, you need to do so.
You must present the same materials as for a renewal by mail and the
(i) Proof of U.S. citizenship, in the form of a certified U.S. birth certificate
or your expired passport, as long as it is not damaged.
(ii) Proof of identity, such as a driver's license or government or military
ID. You may also present an expired passport if it is not damaged.
(iii) Your Social Security number.