Sign up for the IRIS program in the U.K.

If you travel a lot to/from the U.K., you should sign up for the U.K. Border Agency's IRIS program. This program allows you to bypass all the lines at select port of entries into the U.K. You can find details at http://www.ukba.homeoffice.gov.uk/managingborders/technology/iris/howenterwithiris.