Aggregate on more than 1 value in chart when also using "Break By"

Being able to use only 1 field to aggregate on when breaking by a dimension is quite limiting when we are wanting to look at YoY trends on a stacked column chart. I am surprised this has not been brought up yet as one would think this is a fairly common analytical need.  As a broad example, how would one look at YoY sales by day and stacked by product types?