We've all been on the receiving end of email messages that have a vague or content-free subject line ("Hi" for example) or even no subject line, so it's wise to remember it's always good netiquette to add a meaningful subject line to email messages.
A good subject line will help you and the recipient find your message again. So help your readers (and yourself) by summarizing your message in the subject line.
When you receive an email message that has information about a meeting or a training session, you can easily add it to your Outlook Calendar by simply dragging & dropping it. From the view of the folder where the message is (most likely your Inbox), click on the little envelope icon, and drag it to the Calendar icon.
Last week I asked someone to send me files as email attachments, and the 4 Publisher files turned a small 3KB message into 12MB.
Since large email attachments inflate the size of Outlook .pst files and can cause problems (as well as generating email quota warnings), I knew I needed to get those email attachments out of my mailbox.
When you want to keep track of a project -- like who you communicated with, and what you talked about & decided -- but not all of your transactions on the project are email messages, you can use Outlook's Journal funtion to collect the info in one place. The Journal is an often-overlook feature of Outlook. It can create a timeline of transactions (phone calls, conversations, meetings, etc.) that can be linked to one of your contacts.
Did you know that your calendar in Outlook 2007 is customizable? Even though the default view might be Week, find out how you can make it Day or Month to suit your needs. And find out how to change it from a 7-day week view to a 5-day work-week view. You can also show more or less detail in your calendar. These and more custom settings are demonstrated in this 4½ minute video http://office.microsoft.com/en-us/outlook/HA102392311033.aspx.