SharePoint Workflow Essentials by SharePoint Solutions adds 24 essential workflow activities to SharePoint Designer 2010 workflows that are not included out-of-the-box from Microsoft.
Activities like:
“Loop Through List Items” workflow activity
“Start Another Workflow” activity
“Create a SharePoint Site” workflow activity
“Grant Permission on an Item” workflow activity
“Add a User to a SharePoint Group” workflow activity
And 20 more commonly needed workflow activities and 2 new conditions...
These new options appear in SharePoint Designer 2010’s workflow designer interface as though they were built right in, so there’s no extra program or interface to learn.