Setting a good default for the majority users
One of the good practices in the field of user experience design is to give a good default setting for your majority users. It does not only mean putting a good UI for the default screen, but also helping users to quickly and painlessly make their selection or action in a given view.
For example, there’s a group of radio/check box buttons in the describe-your-body type of ‘profile’ section . You can have three buttons (or dropdown) that say ‘fairly athletic’, ‘fat and lazy’ and ‘I’m Lance Amstrong’ to help users auto-check the form fields that fairly represent such description. (I won’t recommend using those actual words though.)
A couple more examples:

Apple Mail: Another good way to let users return to the default screen is to have a good ol’ ‘reset’ button, as shown here in Apply Mail’s preferences screen.

Football Manager 2007: In game UI design, there are always so many options and configurations to choose from. For example in Football Manager 2007, you can pretty much design any kind of soccer formation you can think of. But the developers help ease the users UI adoption by preparing a rather large set of more common tactical formations.