Mila

Mila is a time-saver because it basically makes sure that you don’t have to copy-paste email addresses from your inbox to your spreadsheet, and then from there to MailChimp. So it automatically syncs your inbox to your marketing tools, pretty sweet. It also lets you sort all contacts into categories, so that you can mark who is a customer, who could be a customer, who is a friend, who you met at a conference, etc.