About Face 2.0(c) The Essentials of Interaction Design

All dialog boxes should have title bars.

Use verbs in function dialog title bars.

Use object names in property dialog title bars.

Dialogs should be as small as possible, but no smaller.

Offer OK and Cancel buttons on all modal dialog boxes.

Never use terminating command words in dialog text.

Don't put close boxes on modal dialogs.

Put terminating buttons on the untabbed area of a tabbed dialog.

Don't stack tabs.