Mail.app, Mac’s default mail client, is recognized as a solid application yet seen as lacking in terms of excellent features. That’s where MailTags comes along. This little plug-in installs a side panel in your Mail.app window, from which you can consult your iCal, set rules and create smart mailboxes. You can also create all sorts of tags to organize your messages. MailTags is discreet yet improves your workflow and expands Mail.app’s functionalities.
How to create an easy budget in Google spreadsheets