I would like to have the opportunity to associate an activity "Easily" to an opportunity. I know we can use the three dots to go into a dialogue box to find the association.
For me, the most important record keeping is to associate an activity to an opportunity.
What I would like to see is something in the activty box that would be a button that would list all the open opportunities that this contact is associated. Then check the opportuity(ies) that this activity is associated.
I think this will help me be more effective, especially when I look at opportunity history.