After using Advanced Search to create a pretty detailed search on activities, I need to save it. If my search results were contacts, I could create a smart group based on the search which would essentially make the search permanently available as suggested here: Saving Advanced Searches for later use
However, my search is on activities and displays activities. I need to perform this search frequently and there is no corresponding tool like smart groups for activities.
I also need to be able to use the Batch Update Activities by Profile action on the search results which precludes me from simply creating a report and saving that.