Wattvision now allows you to compare data from today and yesterday on the same graph! Toggle between plots using the checkboxes, select a time range to zoom in on, or choose to view the graphs with data points taken either every 60 or 7.5 seconds (slightly longer loading time).
Also check out the new date-picker option that allows you to conveniently view data from any day or month on the daily and monthly history pages. Enjoy!
(Get to this page by going to your Dashboard and clicking on the History tab. Then, choose to view your data usage either Daily or Monthly.)