Newer versions of Dynamics GP have some advanced date handling features. In a date field, type a number and click tab. The system will assume that you mean this month and year and that you typed the day. If you type the month and day, GP will assume that you mean this year.
Example, if today is 4/12/09, typing 17 will return 4/17/09. Typing 0501 will return 05/01/09.
Dynamics GP's date handling features aren't as advanced as say, Outlook. You can't, for example, type "Tomorrow" and get tomorrow's date since GP's date fields only allow numbers. It is still nice to know that there are some date shortcuts!
(You didn't think that this post was about using Dynamics GP to attract members of the opposite sex did you?)