Earlier this year, Gmail launched a feature to let you import messages and contacts from other mail services like Hotmail, Yahoo, AOL on new Gmail accounts. Google’ve now rolled out this features to all accounts — just go to the Settings > Accounts & Import page and click "Import mail and contacts." A window’ll pop out to lead you through the short import process. If you want to continue to forward any new mail your other account gets for 30 days, Google can do that too. Copying mail over usually takes a couple days, occasionally up to a week — but eventually it all arrives. And once it's done, you can forget your old account and enjoy having everything in one place.