ESTA

Boys don’t forget your ESTA registration:
http://www.cbp.gov/xp/cgov/travel/id_visa/esta/

Watch our for some ‘visa waver service’ sites which seem to charge more to process your application. Not clear what value they add to the process other than cost.

Also to note:
Your ESTA authorization is generally valid for two years or until your passport expires, whichever comes first. This means that as long as you received an ESTA authorization to travel, you do not have to reapply during the validity period. You may update your travel information; however this information is optional and is not required.

Note: Is it important to PRINT a copy of the document for your records. The printout is not required upon arrival into the United States, as the officers have the information electronically. Some airlines require the printout upon check-in, please check with your respective airline.