#emailtip Use Gravatar to set a profile image
This takes two minutes and is totally worth it - register your sending address with Gravatar, add a profile picture, and certain email clients will add the icon next to your emails in the inbox. A quick test shows that it's supported in Sparrow - which has quite a high takeup amongst designers and mac users - and also Postbox app. We'll take a look at support elsewhere and add an update.