Two interesting outlook add-ons
Reply All Reminder
CodeTwo Outlook Reply All Reminder is a free tool that resolves all those “e-mail-reply-boobs” once and for all. It is a typical ‘install-and-forget’ program so it does not need any configuration. Straight after you install this handy application, you will be notified about other recipients of the original message every time you click Reply.
Attachment Reminder
CodeTwo Outlook Attachment Reminder is a free and easy to use Microsoft Outlook add-in which will prompt you to attach files to your email if it seems you have forgotten to do it. The program quickly scans your message right after you click the send button and checks it for predefined keywords that trigger an alert.
Source: codetwo.com