We have implemented a new feature called "Tasks", which are like activities that you can "check off" once completed. When viewing a candidate, contact, job order or company record, look on the upper right hand corner for two small icons.
When you hover the icon that looks like a check box, it should pop up with a description: "Add a Task". You create a task like an activity, once it's been created it will show up on the record itself, in Activities -> My Tasks and in your email inbox. When you're done, check the green checkbox to mark it completed.
Tasks can be also be assigned to other users.