Add a minimal desktop calendar to your Mac with Dateline
A couple of tricks you should know about using Dateline: first, you can hide the dock icon using a checkbox in preferences. Second, without that dock icon, the fastest way to open Dateline preferences if you need to change something is by control-clicking the calendar strip. If you're having trouble doing this, switch the display level of Dateline to "desktop icons" instead of "desktop." Dateline is nothing revolutionary, but I often find myself opening Google Calendar in my browser just to see what day of the week some upcoming appointment falls on, and Dateline saves me the trouble.
[via Daring Fireball]