When you click Send on an email, it is typically sent immediately, but you can have it sent at a later time by using delayed delivery in Outlook.
Do find yourself typing the same message over and over in Microsoft Outlook? You can use Quick Parts in Outlook to create canned responses to emails.
Need to send emails to a group? Instead of sending to a contact group, you can do a mail merge and personalize each recipient's email.
Microsoft Outlook's desktop alerts are great when you are working alone, but if you are doing a presentation or one-on-one training, turn them off.