Modify the Create Agenda dialog to add in the functionality to create multiple agendas at once with an optional date recurrence pattern selection. You could just put the following fields below the Meeting Start Time selection in the dialog: # of Agendas to Create (defaults to 1) OR End Date (defaults to Meeting Date), Recurrence Pattern (drop down selection, defaults to Weekly).
When adding more than one agenda at a time, a confirmation dialog should be provided to ensure that people don't actually add a bunch of agendas accidentally.
For clubs that create a bunch of agendas out into the future this should greatly simplify this task.