When I was asked to move a customer’s 2000-odd contacts and 13 gigabytes of mail to Google’s cloud services from his MacOS-based computer, I knew this was going to be more than a challenge. To complicate matters, he had been using Outlook as a POP3 client of Google Mail and kept all his folders locally in Outlook 2011. From the beginning, I knew this was going to be an undertaking but I have some tips to help you face these particular challenges.