Microsoft Dynamics CRM: Workflow Authoring Best Practices

http://blogs.msdn.com/crm/archive/2010/01/15/microsoft-dynamics-crm-workflow-authoring-best-practices.aspx

interesting article on workflow best practices. especially this bit:

4. Correct use of "Execution Time".

The CRM workflow designer provides a property called "Execution Time" which can be used in dynamic expressions such as "if Account(CreatedOn) + 10 days <>