...to see footbal match at the? emirates. looking for Underground travel advice. Plans are as follows ---DAY 1, Heathrow Term 1 to Holbourn, picadilly line. DAY 2 Holbourn to Arsenal , and back to Holbourn ,picadilly line. DAY 3 Holbourn to heathrow termanal 1. What is the best/easiest way to...